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Finding the Fourth Proportional to 662,759.20, 994,138.80 and 611,437.60

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Solution

The fourth proportional to 662,759.20, 994,138.80 and 611,437.60 is: 917,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,759.20 : 994,138.80 = 611,437.60 : x
  2. Step 2: Convert to fraction form
    662,759.20/994,138.80 = 611,437.60/x
  3. Step 3: Cross multiply
    662,759.20x = 994,138.80 × 611,437.60
  4. Step 4: Simplify right side
    662,759.20x = 607,853,841,938.88
  5. Step 5: Solve for x
    x = 607,853,841,938.88/662,759.20
  6. Step 6: Final answer
    x = 917,156.40

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Similar ratio
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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.