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Finding the Fourth Proportional to 607,560.55, 911,340.83 and 253,266.55

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Solution

The fourth proportional to 607,560.55, 911,340.83 and 253,266.55 is: 379,899.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,560.55 : 911,340.83 = 253,266.55 : x
  2. Step 2: Convert to fraction form
    607,560.55/911,340.83 = 253,266.55/x
  3. Step 3: Cross multiply
    607,560.55x = 911,340.83 × 253,266.55
  4. Step 4: Simplify right side
    607,560.55x = 230,812,146,621.90
  5. Step 5: Solve for x
    x = 230,812,146,621.90/607,560.55
  6. Step 6: Final answer
    x = 379,899.83

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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.