Home / 825,868.20-1,238,802.30-264,959.40

Finding the Fourth Proportional to 825,868.20, 1,238,802.30 and 264,959.40

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Solution

The fourth proportional to 825,868.20, 1,238,802.30 and 264,959.40 is: 397,439.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,868.20 : 1,238,802.30 = 264,959.40 : x
  2. Step 2: Convert to fraction form
    825,868.20/1,238,802.30 = 264,959.40/x
  3. Step 3: Cross multiply
    825,868.20x = 1,238,802.30 × 264,959.40
  4. Step 4: Simplify right side
    825,868.20x = 328,232,314,126.62
  5. Step 5: Solve for x
    x = 328,232,314,126.62/825,868.20
  6. Step 6: Final answer
    x = 397,439.10

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1.5x scale

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.