Home / 527,309.70-727,683.77-285,586.74

Finding the Fourth Proportional to 527,309.70, 727,683.77 and 285,586.74

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Solution

The fourth proportional to 527,309.70, 727,683.77 and 285,586.74 is: 394,107.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,309.70 : 727,683.77 = 285,586.74 : x
  2. Step 2: Convert to fraction form
    527,309.70/727,683.77 = 285,586.74/x
  3. Step 3: Cross multiply
    527,309.70x = 727,683.77 × 285,586.74
  4. Step 4: Simplify right side
    527,309.70x = 207,816,836,016.49
  5. Step 5: Solve for x
    x = 207,816,836,016.49/527,309.70
  6. Step 6: Final answer
    x = 394,107.74

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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.