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Finding the Fourth Proportional to 324,771,307.60, 487,156,961.40 and 324,771,307.60

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Solution

The fourth proportional to 324,771,307.60, 487,156,961.40 and 324,771,307.60 is: 487,156,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,771,307.60 : 487,156,961.40 = 324,771,307.60 : x
  2. Step 2: Convert to fraction form
    324,771,307.60/487,156,961.40 = 324,771,307.60/x
  3. Step 3: Cross multiply
    324,771,307.60x = 487,156,961.40 × 324,771,307.60
  4. Step 4: Simplify right side
    324,771,307.60x = 158,214,603,360,320,736
  5. Step 5: Solve for x
    x = 158,214,603,360,320,736/324,771,307.60
  6. Step 6: Final answer
    x = 487,156,961.40

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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.