Home / 1,289,680.80-1,933,599.60-579,127.20

Finding the Fourth Proportional to 1,289,680.80, 1,933,599.60 and 579,127.20

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Solution

The fourth proportional to 1,289,680.80, 1,933,599.60 and 579,127.20 is: 868,276.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,680.80 : 1,933,599.60 = 579,127.20 : x
  2. Step 2: Convert to fraction form
    1,289,680.80/1,933,599.60 = 579,127.20/x
  3. Step 3: Cross multiply
    1,289,680.80x = 1,933,599.60 × 579,127.20
  4. Step 4: Simplify right side
    1,289,680.80x = 1,119,800,122,269.12
  5. Step 5: Solve for x
    x = 1,119,800,122,269.12/1,289,680.80
  6. Step 6: Final answer
    x = 868,276.96

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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.