Home / 890,391.36-1,228,519.68-527,900.16

Finding the Fourth Proportional to 890,391.36, 1,228,519.68 and 527,900.16

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Solution

The fourth proportional to 890,391.36, 1,228,519.68 and 527,900.16 is: 728,371.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,391.36 : 1,228,519.68 = 527,900.16 : x
  2. Step 2: Convert to fraction form
    890,391.36/1,228,519.68 = 527,900.16/x
  3. Step 3: Cross multiply
    890,391.36x = 1,228,519.68 × 527,900.16
  4. Step 4: Simplify right side
    890,391.36x = 648,535,735,635.15
  5. Step 5: Solve for x
    x = 648,535,735,635.15/890,391.36
  6. Step 6: Final answer
    x = 728,371.55

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Double scale
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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.