Home / 657,237.20-986,244.60-479,296.40

Finding the Fourth Proportional to 657,237.20, 986,244.60 and 479,296.40

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Solution

The fourth proportional to 657,237.20, 986,244.60 and 479,296.40 is: 719,228.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,237.20 : 986,244.60 = 479,296.40 : x
  2. Step 2: Convert to fraction form
    657,237.20/986,244.60 = 479,296.40/x
  3. Step 3: Cross multiply
    657,237.20x = 986,244.60 × 479,296.40
  4. Step 4: Simplify right side
    657,237.20x = 472,703,486,299.44
  5. Step 5: Solve for x
    x = 472,703,486,299.44/657,237.20
  6. Step 6: Final answer
    x = 719,228.14

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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.