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Finding the Fourth Proportional to 576,523.80, 864,785.70 and 367,090.20

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Solution

The fourth proportional to 576,523.80, 864,785.70 and 367,090.20 is: 550,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,523.80 : 864,785.70 = 367,090.20 : x
  2. Step 2: Convert to fraction form
    576,523.80/864,785.70 = 367,090.20/x
  3. Step 3: Cross multiply
    576,523.80x = 864,785.70 × 367,090.20
  4. Step 4: Simplify right side
    576,523.80x = 317,454,355,570.14
  5. Step 5: Solve for x
    x = 317,454,355,570.14/576,523.80
  6. Step 6: Final answer
    x = 550,635.30

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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.