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Finding the Fourth Proportional to 576,042.80, 864,064.20 and 530,423.60

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Solution

The fourth proportional to 576,042.80, 864,064.20 and 530,423.60 is: 795,635.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,042.80 : 864,064.20 = 530,423.60 : x
  2. Step 2: Convert to fraction form
    576,042.80/864,064.20 = 530,423.60/x
  3. Step 3: Cross multiply
    576,042.80x = 864,064.20 × 530,423.60
  4. Step 4: Simplify right side
    576,042.80x = 458,320,043,595.12
  5. Step 5: Solve for x
    x = 458,320,043,595.12/576,042.80
  6. Step 6: Final answer
    x = 795,635.40

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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.