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Finding the Fourth Proportional to 562,452.60, 776,184.09 and 317,488.92

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Solution

The fourth proportional to 562,452.60, 776,184.09 and 317,488.92 is: 438,134.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,452.60 : 776,184.09 = 317,488.92 : x
  2. Step 2: Convert to fraction form
    562,452.60/776,184.09 = 317,488.92/x
  3. Step 3: Cross multiply
    562,452.60x = 776,184.09 × 317,488.92
  4. Step 4: Simplify right side
    562,452.60x = 246,429,852,688.94
  5. Step 5: Solve for x
    x = 246,429,852,688.94/562,452.60
  6. Step 6: Final answer
    x = 438,134.43

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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.