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Finding the Fourth Proportional to 576,489.80, 864,734.70 and 367,056.20

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Solution

The fourth proportional to 576,489.80, 864,734.70 and 367,056.20 is: 550,584.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,489.80 : 864,734.70 = 367,056.20 : x
  2. Step 2: Convert to fraction form
    576,489.80/864,734.70 = 367,056.20/x
  3. Step 3: Cross multiply
    576,489.80x = 864,734.70 × 367,056.20
  4. Step 4: Simplify right side
    576,489.80x = 317,406,232,990.14
  5. Step 5: Solve for x
    x = 317,406,232,990.14/576,489.80
  6. Step 6: Final answer
    x = 550,584.30

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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.