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Finding the Fourth Proportional to 662,997.20, 994,495.80 and 242,574.80

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Solution

The fourth proportional to 662,997.20, 994,495.80 and 242,574.80 is: 363,862.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,997.20 : 994,495.80 = 242,574.80 : x
  2. Step 2: Convert to fraction form
    662,997.20/994,495.80 = 242,574.80/x
  3. Step 3: Cross multiply
    662,997.20x = 994,495.80 × 242,574.80
  4. Step 4: Simplify right side
    662,997.20x = 241,239,619,785.84
  5. Step 5: Solve for x
    x = 241,239,619,785.84/662,997.20
  6. Step 6: Final answer
    x = 363,862.20

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Double scale
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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.