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Finding the Fourth Proportional to 675,646.25, 932,377.43 and 369,721.40

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Solution

The fourth proportional to 675,646.25, 932,377.43 and 369,721.40 is: 510,207.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,646.25 : 932,377.43 = 369,721.40 : x
  2. Step 2: Convert to fraction form
    675,646.25/932,377.43 = 369,721.40/x
  3. Step 3: Cross multiply
    675,646.25x = 932,377.43 × 369,721.40
  4. Step 4: Simplify right side
    675,646.25x = 344,719,885,010.42
  5. Step 5: Solve for x
    x = 344,719,885,010.42/675,646.25
  6. Step 6: Final answer
    x = 510,207.65

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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.