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Finding the Fourth Proportional to 573,585.31, 859,602.92 and 218,405.57

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Solution

The fourth proportional to 573,585.31, 859,602.92 and 218,405.57 is: 327,313.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,585.31 : 859,602.92 = 218,405.57 : x
  2. Step 2: Convert to fraction form
    573,585.31/859,602.92 = 218,405.57/x
  3. Step 3: Cross multiply
    573,585.31x = 859,602.92 × 218,405.57
  4. Step 4: Simplify right side
    573,585.31x = 187,742,065,170.25
  5. Step 5: Solve for x
    x = 187,742,065,170.25/573,585.31
  6. Step 6: Final answer
    x = 327,313.24

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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.