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Finding the Fourth Proportional to 472,457.10, 708,685.65 and 283,500.30

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Solution

The fourth proportional to 472,457.10, 708,685.65 and 283,500.30 is: 425,250.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,457.10 : 708,685.65 = 283,500.30 : x
  2. Step 2: Convert to fraction form
    472,457.10/708,685.65 = 283,500.30/x
  3. Step 3: Cross multiply
    472,457.10x = 708,685.65 × 283,500.30
  4. Step 4: Simplify right side
    472,457.10x = 200,912,594,380.70
  5. Step 5: Solve for x
    x = 200,912,594,380.70/472,457.10
  6. Step 6: Final answer
    x = 425,250.45

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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.