Home / 658,128.92-908,223.96-386,201.38

Finding the Fourth Proportional to 658,128.92, 908,223.96 and 386,201.38

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Solution

The fourth proportional to 658,128.92, 908,223.96 and 386,201.38 is: 532,961.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,128.92 : 908,223.96 = 386,201.38 : x
  2. Step 2: Convert to fraction form
    658,128.92/908,223.96 = 386,201.38/x
  3. Step 3: Cross multiply
    658,128.92x = 908,223.96 × 386,201.38
  4. Step 4: Simplify right side
    658,128.92x = 350,757,346,701.07
  5. Step 5: Solve for x
    x = 350,757,346,701.07/658,128.92
  6. Step 6: Final answer
    x = 532,961.45

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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.