Home / 527,019.15-727,286.28-285,301.55

Finding the Fourth Proportional to 527,019.15, 727,286.28 and 285,301.55

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Solution

The fourth proportional to 527,019.15, 727,286.28 and 285,301.55 is: 393,716.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,019.15 : 727,286.28 = 285,301.55 : x
  2. Step 2: Convert to fraction form
    527,019.15/727,286.28 = 285,301.55/x
  3. Step 3: Cross multiply
    527,019.15x = 727,286.28 × 285,301.55
  4. Step 4: Simplify right side
    527,019.15x = 207,495,902,977.73
  5. Step 5: Solve for x
    x = 207,495,902,977.73/527,019.15
  6. Step 6: Final answer
    x = 393,716.06

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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.