Home / 877,900.28-1,211,600.70-495,951.66

Finding the Fourth Proportional to 877,900.28, 1,211,600.70 and 495,951.66

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Solution

The fourth proportional to 877,900.28, 1,211,600.70 and 495,951.66 is: 684,468.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,900.28 : 1,211,600.70 = 495,951.66 : x
  2. Step 2: Convert to fraction form
    877,900.28/1,211,600.70 = 495,951.66/x
  3. Step 3: Cross multiply
    877,900.28x = 1,211,600.70 × 495,951.66
  4. Step 4: Simplify right side
    877,900.28x = 600,895,378,422.16
  5. Step 5: Solve for x
    x = 600,895,378,422.16/877,900.28
  6. Step 6: Final answer
    x = 684,468.83

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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.