Home / 477,117.10-715,675.20-122,130.55

Finding the Fourth Proportional to 477,117.10, 715,675.20 and 122,130.55

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Solution

The fourth proportional to 477,117.10, 715,675.20 and 122,130.55 is: 183,195.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,117.10 : 715,675.20 = 122,130.55 : x
  2. Step 2: Convert to fraction form
    477,117.10/715,675.20 = 122,130.55/x
  3. Step 3: Cross multiply
    477,117.10x = 715,675.20 × 122,130.55
  4. Step 4: Simplify right side
    477,117.10x = 87,405,805,797.36
  5. Step 5: Solve for x
    x = 87,405,805,797.36/477,117.10
  6. Step 6: Final answer
    x = 183,195.71

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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.