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Finding the Fourth Proportional to 573,184.64, 859,785.21 and 218,218.14

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Solution

The fourth proportional to 573,184.64, 859,785.21 and 218,218.14 is: 327,330.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,184.64 : 859,785.21 = 218,218.14 : x
  2. Step 2: Convert to fraction form
    573,184.64/859,785.21 = 218,218.14/x
  3. Step 3: Cross multiply
    573,184.64x = 859,785.21 × 218,218.14
  4. Step 4: Simplify right side
    573,184.64x = 187,620,729,325.71
  5. Step 5: Solve for x
    x = 187,620,729,325.71/573,184.64
  6. Step 6: Final answer
    x = 327,330.35

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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.