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Finding the Fourth Proportional to 609,534.30, 914,301.45 and 396,957.90

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Solution

The fourth proportional to 609,534.30, 914,301.45 and 396,957.90 is: 595,436.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,534.30 : 914,301.45 = 396,957.90 : x
  2. Step 2: Convert to fraction form
    609,534.30/914,301.45 = 396,957.90/x
  3. Step 3: Cross multiply
    609,534.30x = 914,301.45 × 396,957.90
  4. Step 4: Simplify right side
    609,534.30x = 362,939,183,558.96
  5. Step 5: Solve for x
    x = 362,939,183,558.96/609,534.30
  6. Step 6: Final answer
    x = 595,436.85

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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.