Home / 527,515.16-727,969.92-285,803.74

Finding the Fourth Proportional to 527,515.16, 727,969.92 and 285,803.74

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Solution

The fourth proportional to 527,515.16, 727,969.92 and 285,803.74 is: 394,408.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,515.16 : 727,969.92 = 285,803.74 : x
  2. Step 2: Convert to fraction form
    527,515.16/727,969.92 = 285,803.74/x
  3. Step 3: Cross multiply
    527,515.16x = 727,969.92 × 285,803.74
  4. Step 4: Simplify right side
    527,515.16x = 208,056,525,743.50
  5. Step 5: Solve for x
    x = 208,056,525,743.50/527,515.16
  6. Step 6: Final answer
    x = 394,408.62

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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.