Home / 527,135.26-727,443.48-285,412.72

Finding the Fourth Proportional to 527,135.26, 727,443.48 and 285,412.72

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Solution

The fourth proportional to 527,135.26, 727,443.48 and 285,412.72 is: 393,867.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,135.26 : 727,443.48 = 285,412.72 : x
  2. Step 2: Convert to fraction form
    527,135.26/727,443.48 = 285,412.72/x
  3. Step 3: Cross multiply
    527,135.26x = 727,443.48 × 285,412.72
  4. Step 4: Simplify right side
    527,135.26x = 207,621,622,273.07
  5. Step 5: Solve for x
    x = 207,621,622,273.07/527,135.26
  6. Step 6: Final answer
    x = 393,867.83

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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.