Home / 1,207,499.84-1,666,387.26-663,625.76

Finding the Fourth Proportional to 1,207,499.84, 1,666,387.26 and 663,625.76

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Solution

The fourth proportional to 1,207,499.84, 1,666,387.26 and 663,625.76 is: 915,824.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,499.84 : 1,666,387.26 = 663,625.76 : x
  2. Step 2: Convert to fraction form
    1,207,499.84/1,666,387.26 = 663,625.76/x
  3. Step 3: Cross multiply
    1,207,499.84x = 1,666,387.26 × 663,625.76
  4. Step 4: Simplify right side
    1,207,499.84x = 1,105,857,511,871.82
  5. Step 5: Solve for x
    x = 1,105,857,511,871.82/1,207,499.84
  6. Step 6: Final answer
    x = 915,824.15

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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.