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Finding the Fourth Proportional to 472,923.60, 709,385.40 and 295,630.80

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Solution

The fourth proportional to 472,923.60, 709,385.40 and 295,630.80 is: 443,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,923.60 : 709,385.40 = 295,630.80 : x
  2. Step 2: Convert to fraction form
    472,923.60/709,385.40 = 295,630.80/x
  3. Step 3: Cross multiply
    472,923.60x = 709,385.40 × 295,630.80
  4. Step 4: Simplify right side
    472,923.60x = 209,716,173,310.32
  5. Step 5: Solve for x
    x = 209,716,173,310.32/472,923.60
  6. Step 6: Final answer
    x = 443,446.20

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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.