Home / 639,263.58-882,515.43-466,988.10

Finding the Fourth Proportional to 639,263.58, 882,515.43 and 466,988.10

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Solution

The fourth proportional to 639,263.58, 882,515.43 and 466,988.10 is: 644,685.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,263.58 : 882,515.43 = 466,988.10 : x
  2. Step 2: Convert to fraction form
    639,263.58/882,515.43 = 466,988.10/x
  3. Step 3: Cross multiply
    639,263.58x = 882,515.43 × 466,988.10
  4. Step 4: Simplify right side
    639,263.58x = 412,124,203,876.38
  5. Step 5: Solve for x
    x = 412,124,203,876.38/639,263.58
  6. Step 6: Final answer
    x = 644,685.88

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.