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Finding the Fourth Proportional to 503,485,307.60, 755,227,961.40 and 503,485,307.60

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Solution

The fourth proportional to 503,485,307.60, 755,227,961.40 and 503,485,307.60 is: 755,227,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,485,307.60 : 755,227,961.40 = 503,485,307.60 : x
  2. Step 2: Convert to fraction form
    503,485,307.60/755,227,961.40 = 503,485,307.60/x
  3. Step 3: Cross multiply
    503,485,307.60x = 755,227,961.40 × 503,485,307.60
  4. Step 4: Simplify right side
    503,485,307.60x = 380,246,182,453,599,936
  5. Step 5: Solve for x
    x = 380,246,182,453,599,936/503,485,307.60
  6. Step 6: Final answer
    x = 755,227,961.40

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.