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Finding the Fourth Proportional to 424,840.47, 586,211.25 and 243,519.03

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Solution

The fourth proportional to 424,840.47, 586,211.25 and 243,519.03 is: 336,016.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,840.47 : 586,211.25 = 243,519.03 : x
  2. Step 2: Convert to fraction form
    424,840.47/586,211.25 = 243,519.03/x
  3. Step 3: Cross multiply
    424,840.47x = 586,211.25 × 243,519.03
  4. Step 4: Simplify right side
    424,840.47x = 142,753,593,757.49
  5. Step 5: Solve for x
    x = 142,753,593,757.49/424,840.47
  6. Step 6: Final answer
    x = 336,016.94

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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.