Home / 527,085.05-727,376.34-285,367.59

Finding the Fourth Proportional to 527,085.05, 727,376.34 and 285,367.59

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Solution

The fourth proportional to 527,085.05, 727,376.34 and 285,367.59 is: 393,806.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,085.05 : 727,376.34 = 285,367.59 : x
  2. Step 2: Convert to fraction form
    527,085.05/727,376.34 = 285,367.59/x
  3. Step 3: Cross multiply
    527,085.05x = 727,376.34 × 285,367.59
  4. Step 4: Simplify right side
    527,085.05x = 207,569,633,168.82
  5. Step 5: Solve for x
    x = 207,569,633,168.82/527,085.05
  6. Step 6: Final answer
    x = 393,806.72

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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.