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Finding the Fourth Proportional to 475,772.25, 656,505.36 and 260,855.76

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Solution

The fourth proportional to 475,772.25, 656,505.36 and 260,855.76 is: 359,947.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,772.25 : 656,505.36 = 260,855.76 : x
  2. Step 2: Convert to fraction form
    475,772.25/656,505.36 = 260,855.76/x
  3. Step 3: Cross multiply
    475,772.25x = 656,505.36 × 260,855.76
  4. Step 4: Simplify right side
    475,772.25x = 171,253,204,626.87
  5. Step 5: Solve for x
    x = 171,253,204,626.87/475,772.25
  6. Step 6: Final answer
    x = 359,947.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.