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Finding the Fourth Proportional to 532,061.52, 734,235.12 and 290,337.90

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Solution

The fourth proportional to 532,061.52, 734,235.12 and 290,337.90 is: 400,660.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,061.52 : 734,235.12 = 290,337.90 : x
  2. Step 2: Convert to fraction form
    532,061.52/734,235.12 = 290,337.90/x
  3. Step 3: Cross multiply
    532,061.52x = 734,235.12 × 290,337.90
  4. Step 4: Simplify right side
    532,061.52x = 213,176,282,847.05
  5. Step 5: Solve for x
    x = 213,176,282,847.05/532,061.52
  6. Step 6: Final answer
    x = 400,660.97

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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.