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Finding the Fourth Proportional to 1,386,377, 1,913,205.38 and 750,473

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Solution

The fourth proportional to 1,386,377, 1,913,205.38 and 750,473 is: 1,035,655.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,377 : 1,913,205.38 = 750,473 : x
  2. Step 2: Convert to fraction form
    1,386,377/1,913,205.38 = 750,473/x
  3. Step 3: Cross multiply
    1,386,377x = 1,913,205.38 × 750,473
  4. Step 4: Simplify right side
    1,386,377x = 1,435,808,981,144.74
  5. Step 5: Solve for x
    x = 1,435,808,981,144.74/1,386,377
  6. Step 6: Final answer
    x = 1,035,655.51

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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.