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Finding the Fourth Proportional to 425,418.32, 587,081.16 and 234,438.56

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Solution

The fourth proportional to 425,418.32, 587,081.16 and 234,438.56 is: 323,527.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,418.32 : 587,081.16 = 234,438.56 : x
  2. Step 2: Convert to fraction form
    425,418.32/587,081.16 = 234,438.56/x
  3. Step 3: Cross multiply
    425,418.32x = 587,081.16 × 234,438.56
  4. Step 4: Simplify right side
    425,418.32x = 137,634,461,753.53
  5. Step 5: Solve for x
    x = 137,634,461,753.53/425,418.32
  6. Step 6: Final answer
    x = 323,527.35

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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.