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Finding the Fourth Proportional to 402,858,335.70, 604,287,503.55 and 402,858,335.70

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Solution

The fourth proportional to 402,858,335.70, 604,287,503.55 and 402,858,335.70 is: 604,287,503.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,858,335.70 : 604,287,503.55 = 402,858,335.70 : x
  2. Step 2: Convert to fraction form
    402,858,335.70/604,287,503.55 = 402,858,335.70/x
  3. Step 3: Cross multiply
    402,858,335.70x = 604,287,503.55 × 402,858,335.70
  4. Step 4: Simplify right side
    402,858,335.70x = 243,442,257,964,460,800
  5. Step 5: Solve for x
    x = 243,442,257,964,460,800/402,858,335.70
  6. Step 6: Final answer
    x = 604,287,503.55

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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.