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Finding the Fourth Proportional to 428,292.76, 591,019.14 and 237,294.76

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Solution

The fourth proportional to 428,292.76, 591,019.14 and 237,294.76 is: 327,452.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,292.76 : 591,019.14 = 237,294.76 : x
  2. Step 2: Convert to fraction form
    428,292.76/591,019.14 = 237,294.76/x
  3. Step 3: Cross multiply
    428,292.76x = 591,019.14 × 237,294.76
  4. Step 4: Simplify right side
    428,292.76x = 140,245,744,981.71
  5. Step 5: Solve for x
    x = 140,245,744,981.71/428,292.76
  6. Step 6: Final answer
    x = 327,452.99

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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.