Home / 527,311.71-727,686.52-285,588.74

Finding the Fourth Proportional to 527,311.71, 727,686.52 and 285,588.74

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Solution

The fourth proportional to 527,311.71, 727,686.52 and 285,588.74 is: 394,110.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,311.71 : 727,686.52 = 285,588.74 : x
  2. Step 2: Convert to fraction form
    527,311.71/727,686.52 = 285,588.74/x
  3. Step 3: Cross multiply
    527,311.71x = 727,686.52 × 285,588.74
  4. Step 4: Simplify right side
    527,311.71x = 207,819,077,467.03
  5. Step 5: Solve for x
    x = 207,819,077,467.03/527,311.71
  6. Step 6: Final answer
    x = 394,110.49

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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.