Home / 518,171.07-777,256.63-202,406.55

Finding the Fourth Proportional to 518,171.07, 777,256.63 and 202,406.55

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Solution

The fourth proportional to 518,171.07, 777,256.63 and 202,406.55 is: 303,609.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,171.07 : 777,256.63 = 202,406.55 : x
  2. Step 2: Convert to fraction form
    518,171.07/777,256.63 = 202,406.55/x
  3. Step 3: Cross multiply
    518,171.07x = 777,256.63 × 202,406.55
  4. Step 4: Simplify right side
    518,171.07x = 157,321,829,522.20
  5. Step 5: Solve for x
    x = 157,321,829,522.20/518,171.07
  6. Step 6: Final answer
    x = 303,609.83

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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.