Home / 1,229,365.32-1,696,545.05-678,144.30

Finding the Fourth Proportional to 1,229,365.32, 1,696,545.05 and 678,144.30

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Solution

The fourth proportional to 1,229,365.32, 1,696,545.05 and 678,144.30 is: 935,850.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,365.32 : 1,696,545.05 = 678,144.30 : x
  2. Step 2: Convert to fraction form
    1,229,365.32/1,696,545.05 = 678,144.30/x
  3. Step 3: Cross multiply
    1,229,365.32x = 1,696,545.05 × 678,144.30
  4. Step 4: Simplify right side
    1,229,365.32x = 1,150,502,351,959.99
  5. Step 5: Solve for x
    x = 1,150,502,351,959.99/1,229,365.32
  6. Step 6: Final answer
    x = 935,850.66

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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.