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Finding the Fourth Proportional to 461,713.30, 691,403.55 and 368,401.30

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Solution

The fourth proportional to 461,713.30, 691,403.55 and 368,401.30 is: 551,671.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,713.30 : 691,403.55 = 368,401.30 : x
  2. Step 2: Convert to fraction form
    461,713.30/691,403.55 = 368,401.30/x
  3. Step 3: Cross multiply
    461,713.30x = 691,403.55 × 368,401.30
  4. Step 4: Simplify right side
    461,713.30x = 254,713,966,644.62
  5. Step 5: Solve for x
    x = 254,713,966,644.62/461,713.30
  6. Step 6: Final answer
    x = 551,671.28

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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.