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Finding the Fourth Proportional to 425,385.70, 587,044.80 and 234,411.40

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Solution

The fourth proportional to 425,385.70, 587,044.80 and 234,411.40 is: 323,494.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,385.70 : 587,044.80 = 234,411.40 : x
  2. Step 2: Convert to fraction form
    425,385.70/587,044.80 = 234,411.40/x
  3. Step 3: Cross multiply
    425,385.70x = 587,044.80 × 234,411.40
  4. Step 4: Simplify right side
    425,385.70x = 137,609,990,862.40
  5. Step 5: Solve for x
    x = 137,609,990,862.40/425,385.70
  6. Step 6: Final answer
    x = 323,494.63

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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.