Home / 1,207,685.84-1,666,572.17-663,821.46

Finding the Fourth Proportional to 1,207,685.84, 1,666,572.17 and 663,821.46

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Solution

The fourth proportional to 1,207,685.84, 1,666,572.17 and 663,821.46 is: 916,054.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,685.84 : 1,666,572.17 = 663,821.46 : x
  2. Step 2: Convert to fraction form
    1,207,685.84/1,666,572.17 = 663,821.46/x
  3. Step 3: Cross multiply
    1,207,685.84x = 1,666,572.17 × 663,821.46
  4. Step 4: Simplify right side
    1,207,685.84x = 1,106,306,367,765.66
  5. Step 5: Solve for x
    x = 1,106,306,367,765.66/1,207,685.84
  6. Step 6: Final answer
    x = 916,054.77

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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.