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Finding the Fourth Proportional to 425,612.32, 587,346.78 and 234,621.52

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Solution

The fourth proportional to 425,612.32, 587,346.78 and 234,621.52 is: 323,778.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,612.32 : 587,346.78 = 234,621.52 : x
  2. Step 2: Convert to fraction form
    425,612.32/587,346.78 = 234,621.52/x
  3. Step 3: Cross multiply
    425,612.32x = 587,346.78 × 234,621.52
  4. Step 4: Simplify right side
    425,612.32x = 137,804,194,290.71
  5. Step 5: Solve for x
    x = 137,804,194,290.71/425,612.32
  6. Step 6: Final answer
    x = 323,778.68

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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.