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Finding the Fourth Proportional to 627,868.80, 941,803.20 and 579,945.60

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Solution

The fourth proportional to 627,868.80, 941,803.20 and 579,945.60 is: 869,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,868.80 : 941,803.20 = 579,945.60 : x
  2. Step 2: Convert to fraction form
    627,868.80/941,803.20 = 579,945.60/x
  3. Step 3: Cross multiply
    627,868.80x = 941,803.20 × 579,945.60
  4. Step 4: Simplify right side
    627,868.80x = 546,194,621,905.92
  5. Step 5: Solve for x
    x = 546,194,621,905.92/627,868.80
  6. Step 6: Final answer
    x = 869,918.40

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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.