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Finding the Fourth Proportional to 316,897.38, 437,305.03 and 173,663.46

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Solution

The fourth proportional to 316,897.38, 437,305.03 and 173,663.46 is: 239,648.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,897.38 : 437,305.03 = 173,663.46 : x
  2. Step 2: Convert to fraction form
    316,897.38/437,305.03 = 173,663.46/x
  3. Step 3: Cross multiply
    316,897.38x = 437,305.03 × 173,663.46
  4. Step 4: Simplify right side
    316,897.38x = 75,943,904,151.05
  5. Step 5: Solve for x
    x = 75,943,904,151.05/316,897.38
  6. Step 6: Final answer
    x = 239,648.26

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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.