Home / 527,019.04-727,286.12-285,301.43

Finding the Fourth Proportional to 527,019.04, 727,286.12 and 285,301.43

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Solution

The fourth proportional to 527,019.04, 727,286.12 and 285,301.43 is: 393,715.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,019.04 : 727,286.12 = 285,301.43 : x
  2. Step 2: Convert to fraction form
    527,019.04/727,286.12 = 285,301.43/x
  3. Step 3: Cross multiply
    527,019.04x = 727,286.12 × 285,301.43
  4. Step 4: Simplify right side
    527,019.04x = 207,495,770,055.15
  5. Step 5: Solve for x
    x = 207,495,770,055.15/527,019.04
  6. Step 6: Final answer
    x = 393,715.89

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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.