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Finding the Fourth Proportional to 907,960.10, 1,361,612.10 and 367,989.80

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Solution

The fourth proportional to 907,960.10, 1,361,612.10 and 367,989.80 is: 551,851.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,960.10 : 1,361,612.10 = 367,989.80 : x
  2. Step 2: Convert to fraction form
    907,960.10/1,361,612.10 = 367,989.80/x
  3. Step 3: Cross multiply
    907,960.10x = 1,361,612.10 × 367,989.80
  4. Step 4: Simplify right side
    907,960.10x = 501,059,364,356.58
  5. Step 5: Solve for x
    x = 501,059,364,356.58/907,960.10
  6. Step 6: Final answer
    x = 551,851.74

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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.