Home / 317,630.69-476,452.19-77,746.70

Finding the Fourth Proportional to 317,630.69, 476,452.19 and 77,746.70

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Solution

The fourth proportional to 317,630.69, 476,452.19 and 77,746.70 is: 116,621.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,630.69 : 476,452.19 = 77,746.70 : x
  2. Step 2: Convert to fraction form
    317,630.69/476,452.19 = 77,746.70/x
  3. Step 3: Cross multiply
    317,630.69x = 476,452.19 × 77,746.70
  4. Step 4: Simplify right side
    317,630.69x = 37,042,585,480.27
  5. Step 5: Solve for x
    x = 37,042,585,480.27/317,630.69
  6. Step 6: Final answer
    x = 116,621.56

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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.