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Finding the Fourth Proportional to 478,166.60, 659,874.48 and 263,314.28

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Solution

The fourth proportional to 478,166.60, 659,874.48 and 263,314.28 is: 363,376.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,166.60 : 659,874.48 = 263,314.28 : x
  2. Step 2: Convert to fraction form
    478,166.60/659,874.48 = 263,314.28/x
  3. Step 3: Cross multiply
    478,166.60x = 659,874.48 × 263,314.28
  4. Step 4: Simplify right side
    478,166.60x = 173,754,373,591.57
  5. Step 5: Solve for x
    x = 173,754,373,591.57/478,166.60
  6. Step 6: Final answer
    x = 363,376.22

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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.