Home / 521,402.25-719,535.11-282,938.25

Finding the Fourth Proportional to 521,402.25, 719,535.11 and 282,938.25

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Solution

The fourth proportional to 521,402.25, 719,535.11 and 282,938.25 is: 390,454.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,402.25 : 719,535.11 = 282,938.25 : x
  2. Step 2: Convert to fraction form
    521,402.25/719,535.11 = 282,938.25/x
  3. Step 3: Cross multiply
    521,402.25x = 719,535.11 × 282,938.25
  4. Step 4: Simplify right side
    521,402.25x = 203,584,003,422.27
  5. Step 5: Solve for x
    x = 203,584,003,422.27/521,402.25
  6. Step 6: Final answer
    x = 390,454.79

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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.