Home / 656,643.10-984,964.65-257,151.10

Finding the Fourth Proportional to 656,643.10, 984,964.65 and 257,151.10

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Solution

The fourth proportional to 656,643.10, 984,964.65 and 257,151.10 is: 385,726.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,643.10 : 984,964.65 = 257,151.10 : x
  2. Step 2: Convert to fraction form
    656,643.10/984,964.65 = 257,151.10/x
  3. Step 3: Cross multiply
    656,643.10x = 984,964.65 × 257,151.10
  4. Step 4: Simplify right side
    656,643.10x = 253,284,743,208.62
  5. Step 5: Solve for x
    x = 253,284,743,208.62/656,643.10
  6. Step 6: Final answer
    x = 385,726.65

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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.