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Finding the Fourth Proportional to 499,451.60, 749,177.40 and 144,477.20

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Solution

The fourth proportional to 499,451.60, 749,177.40 and 144,477.20 is: 216,715.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,451.60 : 749,177.40 = 144,477.20 : x
  2. Step 2: Convert to fraction form
    499,451.60/749,177.40 = 144,477.20/x
  3. Step 3: Cross multiply
    499,451.60x = 749,177.40 × 144,477.20
  4. Step 4: Simplify right side
    499,451.60x = 108,239,053,055.28
  5. Step 5: Solve for x
    x = 108,239,053,055.28/499,451.60
  6. Step 6: Final answer
    x = 216,715.80

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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.