Home / 614,128.28-921,192.39-239,888.84

Finding the Fourth Proportional to 614,128.28, 921,192.39 and 239,888.84

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Solution

The fourth proportional to 614,128.28, 921,192.39 and 239,888.84 is: 359,833.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,128.28 : 921,192.39 = 239,888.84 : x
  2. Step 2: Convert to fraction form
    614,128.28/921,192.39 = 239,888.84/x
  3. Step 3: Cross multiply
    614,128.28x = 921,192.39 × 239,888.84
  4. Step 4: Simplify right side
    614,128.28x = 220,983,769,247.97
  5. Step 5: Solve for x
    x = 220,983,769,247.97/614,128.28
  6. Step 6: Final answer
    x = 359,833.24

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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.