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Finding the Fourth Proportional to 355,562.20, 532,565.70 and 276,052.60

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Solution

The fourth proportional to 355,562.20, 532,565.70 and 276,052.60 is: 413,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,562.20 : 532,565.70 = 276,052.60 : x
  2. Step 2: Convert to fraction form
    355,562.20/532,565.70 = 276,052.60/x
  3. Step 3: Cross multiply
    355,562.20x = 532,565.70 × 276,052.60
  4. Step 4: Simplify right side
    355,562.20x = 147,016,146,155.82
  5. Step 5: Solve for x
    x = 147,016,146,155.82/355,562.20
  6. Step 6: Final answer
    x = 413,475.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.