Home / 1,207,686.62-1,666,573.70-663,823.46

Finding the Fourth Proportional to 1,207,686.62, 1,666,573.70 and 663,823.46

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Solution

The fourth proportional to 1,207,686.62, 1,666,573.70 and 663,823.46 is: 916,057.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,686.62 : 1,666,573.70 = 663,823.46 : x
  2. Step 2: Convert to fraction form
    1,207,686.62/1,666,573.70 = 663,823.46/x
  3. Step 3: Cross multiply
    1,207,686.62x = 1,666,573.70 × 663,823.46
  4. Step 4: Simplify right side
    1,207,686.62x = 1,106,310,719,879.00
  5. Step 5: Solve for x
    x = 1,106,310,719,879.00/1,207,686.62
  6. Step 6: Final answer
    x = 916,057.78

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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.