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Finding the Fourth Proportional to 503,485,472.35, 755,228,208.53 and 503,485,472.35

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Solution

The fourth proportional to 503,485,472.35, 755,228,208.53 and 503,485,472.35 is: 755,228,208.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,485,472.35 : 755,228,208.53 = 503,485,472.35 : x
  2. Step 2: Convert to fraction form
    503,485,472.35/755,228,208.53 = 503,485,472.35/x
  3. Step 3: Cross multiply
    503,485,472.35x = 755,228,208.53 × 503,485,472.35
  4. Step 4: Simplify right side
    503,485,472.35x = 380,246,431,303,771,328
  5. Step 5: Solve for x
    x = 380,246,431,303,771,328/503,485,472.35
  6. Step 6: Final answer
    x = 755,228,208.53

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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.