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Finding the Fourth Proportional to 2,456.64, 3,685.77 and 897.12

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Solution

The fourth proportional to 2,456.64, 3,685.77 and 897.12 is: 1,345.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.64 : 3,685.77 = 897.12 : x
  2. Step 2: Convert to fraction form
    2,456.64/3,685.77 = 897.12/x
  3. Step 3: Cross multiply
    2,456.64x = 3,685.77 × 897.12
  4. Step 4: Simplify right side
    2,456.64x = 3,306,577.98
  5. Step 5: Solve for x
    x = 3,306,577.98/2,456.64
  6. Step 6: Final answer
    x = 1,345.98

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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.