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Finding the Fourth Proportional to 456,074.10, 684,111.15 and 267,117.30

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Solution

The fourth proportional to 456,074.10, 684,111.15 and 267,117.30 is: 400,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,074.10 : 684,111.15 = 267,117.30 : x
  2. Step 2: Convert to fraction form
    456,074.10/684,111.15 = 267,117.30/x
  3. Step 3: Cross multiply
    456,074.10x = 684,111.15 × 267,117.30
  4. Step 4: Simplify right side
    456,074.10x = 182,737,923,287.90
  5. Step 5: Solve for x
    x = 182,737,923,287.90/456,074.10
  6. Step 6: Final answer
    x = 400,675.95

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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.