Home / 1,207,780.60-1,666,757.92-663,939.30

Finding the Fourth Proportional to 1,207,780.60, 1,666,757.92 and 663,939.30

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Solution

The fourth proportional to 1,207,780.60, 1,666,757.92 and 663,939.30 is: 916,247.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,780.60 : 1,666,757.92 = 663,939.30 : x
  2. Step 2: Convert to fraction form
    1,207,780.60/1,666,757.92 = 663,939.30/x
  3. Step 3: Cross multiply
    1,207,780.60x = 1,666,757.92 × 663,939.30
  4. Step 4: Simplify right side
    1,207,780.60x = 1,106,626,086,674.26
  5. Step 5: Solve for x
    x = 1,106,626,086,674.26/1,207,780.60
  6. Step 6: Final answer
    x = 916,247.61

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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.