Home / 639,748.91-959,758.69-240,393.14

Finding the Fourth Proportional to 639,748.91, 959,758.69 and 240,393.14

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Solution

The fourth proportional to 639,748.91, 959,758.69 and 240,393.14 is: 360,640.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,748.91 : 959,758.69 = 240,393.14 : x
  2. Step 2: Convert to fraction form
    639,748.91/959,758.69 = 240,393.14/x
  3. Step 3: Cross multiply
    639,748.91x = 959,758.69 × 240,393.14
  4. Step 4: Simplify right side
    639,748.91x = 230,719,399,731.61
  5. Step 5: Solve for x
    x = 230,719,399,731.61/639,748.91
  6. Step 6: Final answer
    x = 360,640.55

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Double scale
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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.