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Finding the Fourth Proportional to 497,295.60, 744,193.80 and 455,305.20

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Solution

The fourth proportional to 497,295.60, 744,193.80 and 455,305.20 is: 681,355.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,295.60 : 744,193.80 = 455,305.20 : x
  2. Step 2: Convert to fraction form
    497,295.60/744,193.80 = 455,305.20/x
  3. Step 3: Cross multiply
    497,295.60x = 744,193.80 × 455,305.20
  4. Step 4: Simplify right side
    497,295.60x = 338,835,306,947.76
  5. Step 5: Solve for x
    x = 338,835,306,947.76/497,295.60
  6. Step 6: Final answer
    x = 681,355.93

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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.