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Finding the Fourth Proportional to 453,854.70, 680,782.05 and 404,865.90

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Solution

The fourth proportional to 453,854.70, 680,782.05 and 404,865.90 is: 607,298.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,854.70 : 680,782.05 = 404,865.90 : x
  2. Step 2: Convert to fraction form
    453,854.70/680,782.05 = 404,865.90/x
  3. Step 3: Cross multiply
    453,854.70x = 680,782.05 × 404,865.90
  4. Step 4: Simplify right side
    453,854.70x = 275,625,437,377.10
  5. Step 5: Solve for x
    x = 275,625,437,377.10/453,854.70
  6. Step 6: Final answer
    x = 607,298.85

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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.