Home / 1,412,312.50-1,948,950.16-800,521.57

Finding the Fourth Proportional to 1,412,312.50, 1,948,950.16 and 800,521.57

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Solution

The fourth proportional to 1,412,312.50, 1,948,950.16 and 800,521.57 is: 1,104,696.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,312.50 : 1,948,950.16 = 800,521.57 : x
  2. Step 2: Convert to fraction form
    1,412,312.50/1,948,950.16 = 800,521.57/x
  3. Step 3: Cross multiply
    1,412,312.50x = 1,948,950.16 × 800,521.57
  4. Step 4: Simplify right side
    1,412,312.50x = 1,560,176,641,934.95
  5. Step 5: Solve for x
    x = 1,560,176,641,934.95/1,412,312.50
  6. Step 6: Final answer
    x = 1,104,696.48

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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.