Home / 641,981.36-962,969.72-192,700.28

Finding the Fourth Proportional to 641,981.36, 962,969.72 and 192,700.28

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Solution

The fourth proportional to 641,981.36, 962,969.72 and 192,700.28 is: 289,049.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,981.36 : 962,969.72 = 192,700.28 : x
  2. Step 2: Convert to fraction form
    641,981.36/962,969.72 = 192,700.28/x
  3. Step 3: Cross multiply
    641,981.36x = 962,969.72 × 192,700.28
  4. Step 4: Simplify right side
    641,981.36x = 185,564,534,675.52
  5. Step 5: Solve for x
    x = 185,564,534,675.52/641,981.36
  6. Step 6: Final answer
    x = 289,049.72

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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.