Home / 527,514.19-727,970.31-285,796.78

Finding the Fourth Proportional to 527,514.19, 727,970.31 and 285,796.78

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Solution

The fourth proportional to 527,514.19, 727,970.31 and 285,796.78 is: 394,399.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,514.19 : 727,970.31 = 285,796.78 : x
  2. Step 2: Convert to fraction form
    527,514.19/727,970.31 = 285,796.78/x
  3. Step 3: Cross multiply
    527,514.19x = 727,970.31 × 285,796.78
  4. Step 4: Simplify right side
    527,514.19x = 208,051,570,533.60
  5. Step 5: Solve for x
    x = 208,051,570,533.60/527,514.19
  6. Step 6: Final answer
    x = 394,399.95

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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.