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Finding the Fourth Proportional to 355,551.20, 532,549.20 and 276,041.60

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Solution

The fourth proportional to 355,551.20, 532,549.20 and 276,041.60 is: 413,458.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,551.20 : 532,549.20 = 276,041.60 : x
  2. Step 2: Convert to fraction form
    355,551.20/532,549.20 = 276,041.60/x
  3. Step 3: Cross multiply
    355,551.20x = 532,549.20 × 276,041.60
  4. Step 4: Simplify right side
    355,551.20x = 147,005,733,246.72
  5. Step 5: Solve for x
    x = 147,005,733,246.72/355,551.20
  6. Step 6: Final answer
    x = 413,458.69

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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.