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Finding the Fourth Proportional to 573,539.16, 859,805.71 and 218,316.90

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Solution

The fourth proportional to 573,539.16, 859,805.71 and 218,316.90 is: 327,283.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,539.16 : 859,805.71 = 218,316.90 : x
  2. Step 2: Convert to fraction form
    573,539.16/859,805.71 = 218,316.90/x
  3. Step 3: Cross multiply
    573,539.16x = 859,805.71 × 218,316.90
  4. Step 4: Simplify right side
    573,539.16x = 187,710,117,209.50
  5. Step 5: Solve for x
    x = 187,710,117,209.50/573,539.16
  6. Step 6: Final answer
    x = 327,283.87

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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.