Home / 957,642.10-1,321,550.09-527,912.80

Finding the Fourth Proportional to 957,642.10, 1,321,550.09 and 527,912.80

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Solution

The fourth proportional to 957,642.10, 1,321,550.09 and 527,912.80 is: 728,521.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,642.10 : 1,321,550.09 = 527,912.80 : x
  2. Step 2: Convert to fraction form
    957,642.10/1,321,550.09 = 527,912.80/x
  3. Step 3: Cross multiply
    957,642.10x = 1,321,550.09 × 527,912.80
  4. Step 4: Simplify right side
    957,642.10x = 697,663,208,352.15
  5. Step 5: Solve for x
    x = 697,663,208,352.15/957,642.10
  6. Step 6: Final answer
    x = 728,521.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.