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Finding the Fourth Proportional to 612,179.56, 844,803.30 and 343,907.56

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Solution

The fourth proportional to 612,179.56, 844,803.30 and 343,907.56 is: 474,589.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,179.56 : 844,803.30 = 343,907.56 : x
  2. Step 2: Convert to fraction form
    612,179.56/844,803.30 = 343,907.56/x
  3. Step 3: Cross multiply
    612,179.56x = 844,803.30 × 343,907.56
  4. Step 4: Simplify right side
    612,179.56x = 290,534,241,582.95
  5. Step 5: Solve for x
    x = 290,534,241,582.95/612,179.56
  6. Step 6: Final answer
    x = 474,589.91

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1.5x scale

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.