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Finding the Fourth Proportional to 562,452.90, 776,184.50 and 317,489.23

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Solution

The fourth proportional to 562,452.90, 776,184.50 and 317,489.23 is: 438,134.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,452.90 : 776,184.50 = 317,489.23 : x
  2. Step 2: Convert to fraction form
    562,452.90/776,184.50 = 317,489.23/x
  3. Step 3: Cross multiply
    562,452.90x = 776,184.50 × 317,489.23
  4. Step 4: Simplify right side
    562,452.90x = 246,430,217,930.93
  5. Step 5: Solve for x
    x = 246,430,217,930.93/562,452.90
  6. Step 6: Final answer
    x = 438,134.85

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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.