Home / 1,384,555.36-1,910,711.28-812,008.48

Finding the Fourth Proportional to 1,384,555.36, 1,910,711.28 and 812,008.48

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Solution

The fourth proportional to 1,384,555.36, 1,910,711.28 and 812,008.48 is: 1,120,586.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,555.36 : 1,910,711.28 = 812,008.48 : x
  2. Step 2: Convert to fraction form
    1,384,555.36/1,910,711.28 = 812,008.48/x
  3. Step 3: Cross multiply
    1,384,555.36x = 1,910,711.28 × 812,008.48
  4. Step 4: Simplify right side
    1,384,555.36x = 1,551,513,762,191.65
  5. Step 5: Solve for x
    x = 1,551,513,762,191.65/1,384,555.36
  6. Step 6: Final answer
    x = 1,120,586.30

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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.