Home / 1,239,852.20-1,711,052.87-688,570.43

Finding the Fourth Proportional to 1,239,852.20, 1,711,052.87 and 688,570.43

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Solution

The fourth proportional to 1,239,852.20, 1,711,052.87 and 688,570.43 is: 950,258.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,852.20 : 1,711,052.87 = 688,570.43 : x
  2. Step 2: Convert to fraction form
    1,239,852.20/1,711,052.87 = 688,570.43/x
  3. Step 3: Cross multiply
    1,239,852.20x = 1,711,052.87 × 688,570.43
  4. Step 4: Simplify right side
    1,239,852.20x = 1,178,180,398,450.52
  5. Step 5: Solve for x
    x = 1,178,180,398,450.52/1,239,852.20
  6. Step 6: Final answer
    x = 950,258.75

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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.