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Finding the Fourth Proportional to 627,688.80, 941,729.94 and 207,259.92

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Solution

The fourth proportional to 627,688.80, 941,729.94 and 207,259.92 is: 310,954.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,688.80 : 941,729.94 = 207,259.92 : x
  2. Step 2: Convert to fraction form
    627,688.80/941,729.94 = 207,259.92/x
  3. Step 3: Cross multiply
    627,688.80x = 941,729.94 × 207,259.92
  4. Step 4: Simplify right side
    627,688.80x = 195,182,872,026.01
  5. Step 5: Solve for x
    x = 195,182,872,026.01/627,688.80
  6. Step 6: Final answer
    x = 310,954.84

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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.