Home / 927,810.25-1,389,352.80-611,307.61

Finding the Fourth Proportional to 927,810.25, 1,389,352.80 and 611,307.61

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Solution

The fourth proportional to 927,810.25, 1,389,352.80 and 611,307.61 is: 915,404.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,810.25 : 1,389,352.80 = 611,307.61 : x
  2. Step 2: Convert to fraction form
    927,810.25/1,389,352.80 = 611,307.61/x
  3. Step 3: Cross multiply
    927,810.25x = 1,389,352.80 × 611,307.61
  4. Step 4: Simplify right side
    927,810.25x = 849,321,932,668.04
  5. Step 5: Solve for x
    x = 849,321,932,668.04/927,810.25
  6. Step 6: Final answer
    x = 915,404.78

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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.