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Finding the Fourth Proportional to 472,920.60, 709,380.90 and 295,627.80

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Solution

The fourth proportional to 472,920.60, 709,380.90 and 295,627.80 is: 443,441.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,920.60 : 709,380.90 = 295,627.80 : x
  2. Step 2: Convert to fraction form
    472,920.60/709,380.90 = 295,627.80/x
  3. Step 3: Cross multiply
    472,920.60x = 709,380.90 × 295,627.80
  4. Step 4: Simplify right side
    472,920.60x = 209,712,714,829.02
  5. Step 5: Solve for x
    x = 209,712,714,829.02/472,920.60
  6. Step 6: Final answer
    x = 443,441.70

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Similar ratio
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1.5x scale

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.