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Finding the Fourth Proportional to 592,342,111.80, 888,513,167.70 and 420,155,227.80

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Solution

The fourth proportional to 592,342,111.80, 888,513,167.70 and 420,155,227.80 is: 630,232,841.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,342,111.80 : 888,513,167.70 = 420,155,227.80 : x
  2. Step 2: Convert to fraction form
    592,342,111.80/888,513,167.70 = 420,155,227.80/x
  3. Step 3: Cross multiply
    592,342,111.80x = 888,513,167.70 × 420,155,227.80
  4. Step 4: Simplify right side
    592,342,111.80x = 373,313,452,378,293,120
  5. Step 5: Solve for x
    x = 373,313,452,378,293,120/592,342,111.80
  6. Step 6: Final answer
    x = 630,232,841.70

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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.