Home / 639,254.74-882,192.71-348,882.16

Finding the Fourth Proportional to 639,254.74, 882,192.71 and 348,882.16

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Solution

The fourth proportional to 639,254.74, 882,192.71 and 348,882.16 is: 481,468.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,254.74 : 882,192.71 = 348,882.16 : x
  2. Step 2: Convert to fraction form
    639,254.74/882,192.71 = 348,882.16/x
  3. Step 3: Cross multiply
    639,254.74x = 882,192.71 × 348,882.16
  4. Step 4: Simplify right side
    639,254.74x = 307,781,298,201.05
  5. Step 5: Solve for x
    x = 307,781,298,201.05/639,254.74
  6. Step 6: Final answer
    x = 481,468.93

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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.