Home / 578,731.36-868,129.80-199,669.56

Finding the Fourth Proportional to 578,731.36, 868,129.80 and 199,669.56

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Solution

The fourth proportional to 578,731.36, 868,129.80 and 199,669.56 is: 299,515.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,731.36 : 868,129.80 = 199,669.56 : x
  2. Step 2: Convert to fraction form
    578,731.36/868,129.80 = 199,669.56/x
  3. Step 3: Cross multiply
    578,731.36x = 868,129.80 × 199,669.56
  4. Step 4: Simplify right side
    578,731.36x = 173,339,095,188.89
  5. Step 5: Solve for x
    x = 173,339,095,188.89/578,731.36
  6. Step 6: Final answer
    x = 299,515.64

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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.