Home / 957,769.12-1,321,780.80-528,048.52

Finding the Fourth Proportional to 957,769.12, 1,321,780.80 and 528,048.52

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Solution

The fourth proportional to 957,769.12, 1,321,780.80 and 528,048.52 is: 728,739.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,769.12 : 1,321,780.80 = 528,048.52 : x
  2. Step 2: Convert to fraction form
    957,769.12/1,321,780.80 = 528,048.52/x
  3. Step 3: Cross multiply
    957,769.12x = 1,321,780.80 × 528,048.52
  4. Step 4: Simplify right side
    957,769.12x = 697,964,395,204.42
  5. Step 5: Solve for x
    x = 697,964,395,204.42/957,769.12
  6. Step 6: Final answer
    x = 728,739.71

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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.