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Finding the Fourth Proportional to 431,248.20, 646,988.94 and 244,390.92

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Solution

The fourth proportional to 431,248.20, 646,988.94 and 244,390.92 is: 366,652.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,248.20 : 646,988.94 = 244,390.92 : x
  2. Step 2: Convert to fraction form
    431,248.20/646,988.94 = 244,390.92/x
  3. Step 3: Cross multiply
    431,248.20x = 646,988.94 × 244,390.92
  4. Step 4: Simplify right side
    431,248.20x = 158,118,222,276.43
  5. Step 5: Solve for x
    x = 158,118,222,276.43/431,248.20
  6. Step 6: Final answer
    x = 366,652.48

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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.