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Finding the Fourth Proportional to 581,680.44, 872,522.28 and 315,566.28

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Solution

The fourth proportional to 581,680.44, 872,522.28 and 315,566.28 is: 473,350.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,680.44 : 872,522.28 = 315,566.28 : x
  2. Step 2: Convert to fraction form
    581,680.44/872,522.28 = 315,566.28/x
  3. Step 3: Cross multiply
    581,680.44x = 872,522.28 × 315,566.28
  4. Step 4: Simplify right side
    581,680.44x = 275,338,610,116.72
  5. Step 5: Solve for x
    x = 275,338,610,116.72/581,680.44
  6. Step 6: Final answer
    x = 473,350.30

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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.