Home / 527,021.60-727,290.03-285,304.16

Finding the Fourth Proportional to 527,021.60, 727,290.03 and 285,304.16

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Solution

The fourth proportional to 527,021.60, 727,290.03 and 285,304.16 is: 393,719.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,021.60 : 727,290.03 = 285,304.16 : x
  2. Step 2: Convert to fraction form
    527,021.60/727,290.03 = 285,304.16/x
  3. Step 3: Cross multiply
    527,021.60x = 727,290.03 × 285,304.16
  4. Step 4: Simplify right side
    527,021.60x = 207,498,872,903.75
  5. Step 5: Solve for x
    x = 207,498,872,903.75/527,021.60
  6. Step 6: Final answer
    x = 393,719.87

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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.