Home / 527,262.39-727,618.20-285,539.36

Finding the Fourth Proportional to 527,262.39, 727,618.20 and 285,539.36

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Solution

The fourth proportional to 527,262.39, 727,618.20 and 285,539.36 is: 394,042.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,262.39 : 727,618.20 = 285,539.36 : x
  2. Step 2: Convert to fraction form
    527,262.39/727,618.20 = 285,539.36/x
  3. Step 3: Cross multiply
    527,262.39x = 727,618.20 × 285,539.36
  4. Step 4: Simplify right side
    527,262.39x = 207,763,631,514.26
  5. Step 5: Solve for x
    x = 207,763,631,514.26/527,262.39
  6. Step 6: Final answer
    x = 394,042.20

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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.