Home / 873,092.80-1,309,639.20-663,140.80

Finding the Fourth Proportional to 873,092.80, 1,309,639.20 and 663,140.80

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Solution

The fourth proportional to 873,092.80, 1,309,639.20 and 663,140.80 is: 994,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,092.80 : 1,309,639.20 = 663,140.80 : x
  2. Step 2: Convert to fraction form
    873,092.80/1,309,639.20 = 663,140.80/x
  3. Step 3: Cross multiply
    873,092.80x = 1,309,639.20 × 663,140.80
  4. Step 4: Simplify right side
    873,092.80x = 868,475,186,799.36
  5. Step 5: Solve for x
    x = 868,475,186,799.36/873,092.80
  6. Step 6: Final answer
    x = 994,711.20

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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.