Home / 899,001.28-1,240,659.53-517,028.41

Finding the Fourth Proportional to 899,001.28, 1,240,659.53 and 517,028.41

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Solution

The fourth proportional to 899,001.28, 1,240,659.53 and 517,028.41 is: 713,520.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,001.28 : 1,240,659.53 = 517,028.41 : x
  2. Step 2: Convert to fraction form
    899,001.28/1,240,659.53 = 517,028.41/x
  3. Step 3: Cross multiply
    899,001.28x = 1,240,659.53 × 517,028.41
  4. Step 4: Simplify right side
    899,001.28x = 641,456,224,147.25
  5. Step 5: Solve for x
    x = 641,456,224,147.25/899,001.28
  6. Step 6: Final answer
    x = 713,520.92

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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.