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Finding the Fourth Proportional to 652,800.60, 979,200.90 and 372,346.20

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Solution

The fourth proportional to 652,800.60, 979,200.90 and 372,346.20 is: 558,519.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,800.60 : 979,200.90 = 372,346.20 : x
  2. Step 2: Convert to fraction form
    652,800.60/979,200.90 = 372,346.20/x
  3. Step 3: Cross multiply
    652,800.60x = 979,200.90 × 372,346.20
  4. Step 4: Simplify right side
    652,800.60x = 364,601,734,151.58
  5. Step 5: Solve for x
    x = 364,601,734,151.58/652,800.60
  6. Step 6: Final answer
    x = 558,519.30

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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.