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Finding the Fourth Proportional to 1,358,217, 1,874,397.78 and 754,605

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Solution

The fourth proportional to 1,358,217, 1,874,397.78 and 754,605 is: 1,041,387.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,217 : 1,874,397.78 = 754,605 : x
  2. Step 2: Convert to fraction form
    1,358,217/1,874,397.78 = 754,605/x
  3. Step 3: Cross multiply
    1,358,217x = 1,874,397.78 × 754,605
  4. Step 4: Simplify right side
    1,358,217x = 1,414,429,936,776.90
  5. Step 5: Solve for x
    x = 1,414,429,936,776.90/1,358,217
  6. Step 6: Final answer
    x = 1,041,387.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.