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Finding the Fourth Proportional to 576,340.80, 864,511.20 and 576,340.80

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Solution

The fourth proportional to 576,340.80, 864,511.20 and 576,340.80 is: 864,511.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,340.80 : 864,511.20 = 576,340.80 : x
  2. Step 2: Convert to fraction form
    576,340.80/864,511.20 = 576,340.80/x
  3. Step 3: Cross multiply
    576,340.80x = 864,511.20 × 576,340.80
  4. Step 4: Simplify right side
    576,340.80x = 498,253,076,616.96
  5. Step 5: Solve for x
    x = 498,253,076,616.96/576,340.80
  6. Step 6: Final answer
    x = 864,511.20

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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.