Home / 651,025.20-976,537.80-399,082.80

Finding the Fourth Proportional to 651,025.20, 976,537.80 and 399,082.80

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Solution

The fourth proportional to 651,025.20, 976,537.80 and 399,082.80 is: 598,624.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,025.20 : 976,537.80 = 399,082.80 : x
  2. Step 2: Convert to fraction form
    651,025.20/976,537.80 = 399,082.80/x
  3. Step 3: Cross multiply
    651,025.20x = 976,537.80 × 399,082.80
  4. Step 4: Simplify right side
    651,025.20x = 389,719,439,529.84
  5. Step 5: Solve for x
    x = 389,719,439,529.84/651,025.20
  6. Step 6: Final answer
    x = 598,624.20

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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.