Home / 1,207,554.98-1,666,420.79-663,713.69

Finding the Fourth Proportional to 1,207,554.98, 1,666,420.79 and 663,713.69

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Solution

The fourth proportional to 1,207,554.98, 1,666,420.79 and 663,713.69 is: 915,922.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,554.98 : 1,666,420.79 = 663,713.69 : x
  2. Step 2: Convert to fraction form
    1,207,554.98/1,666,420.79 = 663,713.69/x
  3. Step 3: Cross multiply
    1,207,554.98x = 1,666,420.79 × 663,713.69
  4. Step 4: Simplify right side
    1,207,554.98x = 1,106,026,279,972.94
  5. Step 5: Solve for x
    x = 1,106,026,279,972.94/1,207,554.98
  6. Step 6: Final answer
    x = 915,922.09

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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.