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Finding the Fourth Proportional to 423,534.96, 635,397.24 and 143,044.92

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Solution

The fourth proportional to 423,534.96, 635,397.24 and 143,044.92 is: 214,599.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,534.96 : 635,397.24 = 143,044.92 : x
  2. Step 2: Convert to fraction form
    423,534.96/635,397.24 = 143,044.92/x
  3. Step 3: Cross multiply
    423,534.96x = 635,397.24 × 143,044.92
  4. Step 4: Simplify right side
    423,534.96x = 90,890,347,364.02
  5. Step 5: Solve for x
    x = 90,890,347,364.02/423,534.96
  6. Step 6: Final answer
    x = 214,599.40

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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.