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Finding the Fourth Proportional to 425,686.56, 587,436.21 and 234,695.04

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Solution

The fourth proportional to 425,686.56, 587,436.21 and 234,695.04 is: 323,872.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,686.56 : 587,436.21 = 234,695.04 : x
  2. Step 2: Convert to fraction form
    425,686.56/587,436.21 = 234,695.04/x
  3. Step 3: Cross multiply
    425,686.56x = 587,436.21 × 234,695.04
  4. Step 4: Simplify right side
    425,686.56x = 137,868,364,803.40
  5. Step 5: Solve for x
    x = 137,868,364,803.40/425,686.56
  6. Step 6: Final answer
    x = 323,872.96

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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.