Home / 526,938.40-727,189.14-320,136.40

Finding the Fourth Proportional to 526,938.40, 727,189.14 and 320,136.40

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Solution

The fourth proportional to 526,938.40, 727,189.14 and 320,136.40 is: 441,796.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,938.40 : 727,189.14 = 320,136.40 : x
  2. Step 2: Convert to fraction form
    526,938.40/727,189.14 = 320,136.40/x
  3. Step 3: Cross multiply
    526,938.40x = 727,189.14 × 320,136.40
  4. Step 4: Simplify right side
    526,938.40x = 232,799,713,398.70
  5. Step 5: Solve for x
    x = 232,799,713,398.70/526,938.40
  6. Step 6: Final answer
    x = 441,796.83

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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.