Home / 1,207,178.58-1,665,898.47-663,320.28

Finding the Fourth Proportional to 1,207,178.58, 1,665,898.47 and 663,320.28

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Solution

The fourth proportional to 1,207,178.58, 1,665,898.47 and 663,320.28 is: 915,377.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,178.58 : 1,665,898.47 = 663,320.28 : x
  2. Step 2: Convert to fraction form
    1,207,178.58/1,665,898.47 = 663,320.28/x
  3. Step 3: Cross multiply
    1,207,178.58x = 1,665,898.47 × 663,320.28
  4. Step 4: Simplify right side
    1,207,178.58x = 1,105,024,239,571.97
  5. Step 5: Solve for x
    x = 1,105,024,239,571.97/1,207,178.58
  6. Step 6: Final answer
    x = 915,377.61

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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.