Home / 639,255.16-958,986.78-239,927.32

Finding the Fourth Proportional to 639,255.16, 958,986.78 and 239,927.32

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Solution

The fourth proportional to 639,255.16, 958,986.78 and 239,927.32 is: 359,930.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,255.16 : 958,986.78 = 239,927.32 : x
  2. Step 2: Convert to fraction form
    639,255.16/958,986.78 = 239,927.32/x
  3. Step 3: Cross multiply
    639,255.16x = 958,986.78 × 239,927.32
  4. Step 4: Simplify right side
    639,255.16x = 230,087,128,040.83
  5. Step 5: Solve for x
    x = 230,087,128,040.83/639,255.16
  6. Step 6: Final answer
    x = 359,930.03

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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.