Home / 771,864.30-1,157,796.45-239,439.15

Finding the Fourth Proportional to 771,864.30, 1,157,796.45 and 239,439.15

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Solution

The fourth proportional to 771,864.30, 1,157,796.45 and 239,439.15 is: 359,158.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,864.30 : 1,157,796.45 = 239,439.15 : x
  2. Step 2: Convert to fraction form
    771,864.30/1,157,796.45 = 239,439.15/x
  3. Step 3: Cross multiply
    771,864.30x = 1,157,796.45 × 239,439.15
  4. Step 4: Simplify right side
    771,864.30x = 277,221,797,861.02
  5. Step 5: Solve for x
    x = 277,221,797,861.02/771,864.30
  6. Step 6: Final answer
    x = 359,158.73

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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.