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Finding the Fourth Proportional to 425,638.22, 587,385.28 and 234,658.46

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Solution

The fourth proportional to 425,638.22, 587,385.28 and 234,658.46 is: 323,831.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,638.22 : 587,385.28 = 234,658.46 : x
  2. Step 2: Convert to fraction form
    425,638.22/587,385.28 = 234,658.46/x
  3. Step 3: Cross multiply
    425,638.22x = 587,385.28 × 234,658.46
  4. Step 4: Simplify right side
    425,638.22x = 137,834,925,231.47
  5. Step 5: Solve for x
    x = 137,834,925,231.47/425,638.22
  6. Step 6: Final answer
    x = 323,831.18

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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.