Home / 1,239,856.20-1,711,058.39-688,574.43

Finding the Fourth Proportional to 1,239,856.20, 1,711,058.39 and 688,574.43

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Solution

The fourth proportional to 1,239,856.20, 1,711,058.39 and 688,574.43 is: 950,264.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,856.20 : 1,711,058.39 = 688,574.43 : x
  2. Step 2: Convert to fraction form
    1,239,856.20/1,711,058.39 = 688,574.43/x
  3. Step 3: Cross multiply
    1,239,856.20x = 1,711,058.39 × 688,574.43
  4. Step 4: Simplify right side
    1,239,856.20x = 1,178,191,055,590.97
  5. Step 5: Solve for x
    x = 1,178,191,055,590.97/1,239,856.20
  6. Step 6: Final answer
    x = 950,264.28

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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.