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Finding the Fourth Proportional to 402,413,338.10, 603,620,007.15 and 402,413,338.10

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Solution

The fourth proportional to 402,413,338.10, 603,620,007.15 and 402,413,338.10 is: 603,620,007.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,413,338.10 : 603,620,007.15 = 402,413,338.10 : x
  2. Step 2: Convert to fraction form
    402,413,338.10/603,620,007.15 = 402,413,338.10/x
  3. Step 3: Cross multiply
    402,413,338.10x = 603,620,007.15 × 402,413,338.10
  4. Step 4: Simplify right side
    402,413,338.10x = 242,904,742,021,177,376
  5. Step 5: Solve for x
    x = 242,904,742,021,177,376/402,413,338.10
  6. Step 6: Final answer
    x = 603,620,007.15

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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.