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Finding the Fourth Proportional to 438,397.38, 604,988.38 and 237,193.38

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Solution

The fourth proportional to 438,397.38, 604,988.38 and 237,193.38 is: 327,326.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,397.38 : 604,988.38 = 237,193.38 : x
  2. Step 2: Convert to fraction form
    438,397.38/604,988.38 = 237,193.38/x
  3. Step 3: Cross multiply
    438,397.38x = 604,988.38 × 237,193.38
  4. Step 4: Simplify right side
    438,397.38x = 143,499,238,712.92
  5. Step 5: Solve for x
    x = 143,499,238,712.92/438,397.38
  6. Step 6: Final answer
    x = 327,326.86

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1.5x scale

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.