Home / 691,264.80-1,036,897.20-192,628.80

Finding the Fourth Proportional to 691,264.80, 1,036,897.20 and 192,628.80

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Solution

The fourth proportional to 691,264.80, 1,036,897.20 and 192,628.80 is: 288,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,264.80 : 1,036,897.20 = 192,628.80 : x
  2. Step 2: Convert to fraction form
    691,264.80/1,036,897.20 = 192,628.80/x
  3. Step 3: Cross multiply
    691,264.80x = 1,036,897.20 × 192,628.80
  4. Step 4: Simplify right side
    691,264.80x = 199,736,263,359.36
  5. Step 5: Solve for x
    x = 199,736,263,359.36/691,264.80
  6. Step 6: Final answer
    x = 288,943.20

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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.