Home / 1,313,191.20-1,968,328.80-514,207.20

Finding the Fourth Proportional to 1,313,191.20, 1,968,328.80 and 514,207.20

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Solution

The fourth proportional to 1,313,191.20, 1,968,328.80 and 514,207.20 is: 770,739.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,191.20 : 1,968,328.80 = 514,207.20 : x
  2. Step 2: Convert to fraction form
    1,313,191.20/1,968,328.80 = 514,207.20/x
  3. Step 3: Cross multiply
    1,313,191.20x = 1,968,328.80 × 514,207.20
  4. Step 4: Simplify right side
    1,313,191.20x = 1,012,128,840,927.36
  5. Step 5: Solve for x
    x = 1,012,128,840,927.36/1,313,191.20
  6. Step 6: Final answer
    x = 770,739.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.