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Finding the Fourth Proportional to 579,200.40, 868,800.60 and 559,846.80

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Solution

The fourth proportional to 579,200.40, 868,800.60 and 559,846.80 is: 839,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,200.40 : 868,800.60 = 559,846.80 : x
  2. Step 2: Convert to fraction form
    579,200.40/868,800.60 = 559,846.80/x
  3. Step 3: Cross multiply
    579,200.40x = 868,800.60 × 559,846.80
  4. Step 4: Simplify right side
    579,200.40x = 486,395,235,748.08
  5. Step 5: Solve for x
    x = 486,395,235,748.08/579,200.40
  6. Step 6: Final answer
    x = 839,770.20

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Half scale
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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.