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Finding the Fourth Proportional to 876,592.64, 1,314,356.76 and 343,474.92

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Solution

The fourth proportional to 876,592.64, 1,314,356.76 and 343,474.92 is: 515,003.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,592.64 : 1,314,356.76 = 343,474.92 : x
  2. Step 2: Convert to fraction form
    876,592.64/1,314,356.76 = 343,474.92/x
  3. Step 3: Cross multiply
    876,592.64x = 1,314,356.76 × 343,474.92
  4. Step 4: Simplify right side
    876,592.64x = 451,448,582,992.46
  5. Step 5: Solve for x
    x = 451,448,582,992.46/876,592.64
  6. Step 6: Final answer
    x = 515,003.85

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1.5x scale

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.