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Finding the Fourth Proportional to 567,280.80, 850,921.20 and 317,930.40

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Solution

The fourth proportional to 567,280.80, 850,921.20 and 317,930.40 is: 476,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,280.80 : 850,921.20 = 317,930.40 : x
  2. Step 2: Convert to fraction form
    567,280.80/850,921.20 = 317,930.40/x
  3. Step 3: Cross multiply
    567,280.80x = 850,921.20 × 317,930.40
  4. Step 4: Simplify right side
    567,280.80x = 270,533,717,484.48
  5. Step 5: Solve for x
    x = 270,533,717,484.48/567,280.80
  6. Step 6: Final answer
    x = 476,895.60

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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.