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Finding the Fourth Proportional to 292,624.90, 438,937.38 and 82,262.88

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Solution

The fourth proportional to 292,624.90, 438,937.38 and 82,262.88 is: 123,394.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,624.90 : 438,937.38 = 82,262.88 : x
  2. Step 2: Convert to fraction form
    292,624.90/438,937.38 = 82,262.88/x
  3. Step 3: Cross multiply
    292,624.90x = 438,937.38 × 82,262.88
  4. Step 4: Simplify right side
    292,624.90x = 36,108,253,018.45
  5. Step 5: Solve for x
    x = 36,108,253,018.45/292,624.90
  6. Step 6: Final answer
    x = 123,394.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.