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Finding the Fourth Proportional to 1,386,376, 1,913,204 and 750,472

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Solution

The fourth proportional to 1,386,376, 1,913,204 and 750,472 is: 1,035,654.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,376 : 1,913,204 = 750,472 : x
  2. Step 2: Convert to fraction form
    1,386,376/1,913,204 = 750,472/x
  3. Step 3: Cross multiply
    1,386,376x = 1,913,204 × 750,472
  4. Step 4: Simplify right side
    1,386,376x = 1,435,806,032,288
  5. Step 5: Solve for x
    x = 1,435,806,032,288/1,386,376
  6. Step 6: Final answer
    x = 1,035,654.13

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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.