Home / 827,724.26-1,240,957.02-428,110.58

Finding the Fourth Proportional to 827,724.26, 1,240,957.02 and 428,110.58

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Solution

The fourth proportional to 827,724.26, 1,240,957.02 and 428,110.58 is: 641,840.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,724.26 : 1,240,957.02 = 428,110.58 : x
  2. Step 2: Convert to fraction form
    827,724.26/1,240,957.02 = 428,110.58/x
  3. Step 3: Cross multiply
    827,724.26x = 1,240,957.02 × 428,110.58
  4. Step 4: Simplify right side
    827,724.26x = 531,266,829,587.27
  5. Step 5: Solve for x
    x = 531,266,829,587.27/827,724.26
  6. Step 6: Final answer
    x = 641,840.35

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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.