Home / 825,868.60-1,238,802.90-264,959.80

Finding the Fourth Proportional to 825,868.60, 1,238,802.90 and 264,959.80

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Solution

The fourth proportional to 825,868.60, 1,238,802.90 and 264,959.80 is: 397,439.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,868.60 : 1,238,802.90 = 264,959.80 : x
  2. Step 2: Convert to fraction form
    825,868.60/1,238,802.90 = 264,959.80/x
  3. Step 3: Cross multiply
    825,868.60x = 1,238,802.90 × 264,959.80
  4. Step 4: Simplify right side
    825,868.60x = 328,232,968,623.42
  5. Step 5: Solve for x
    x = 328,232,968,623.42/825,868.60
  6. Step 6: Final answer
    x = 397,439.70

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Similar ratio
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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.