Home / 658,512.40-987,811.80-185,213.20

Finding the Fourth Proportional to 658,512.40, 987,811.80 and 185,213.20

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Solution

The fourth proportional to 658,512.40, 987,811.80 and 185,213.20 is: 277,831.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,512.40 : 987,811.80 = 185,213.20 : x
  2. Step 2: Convert to fraction form
    658,512.40/987,811.80 = 185,213.20/x
  3. Step 3: Cross multiply
    658,512.40x = 987,811.80 × 185,213.20
  4. Step 4: Simplify right side
    658,512.40x = 182,955,784,475.76
  5. Step 5: Solve for x
    x = 182,955,784,475.76/658,512.40
  6. Step 6: Final answer
    x = 277,831.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.