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Finding the Fourth Proportional to 2,548.13, 3,822.14 and 904.28

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Solution

The fourth proportional to 2,548.13, 3,822.14 and 904.28 is: 1,356.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,548.13 : 3,822.14 = 904.28 : x
  2. Step 2: Convert to fraction form
    2,548.13/3,822.14 = 904.28/x
  3. Step 3: Cross multiply
    2,548.13x = 3,822.14 × 904.28
  4. Step 4: Simplify right side
    2,548.13x = 3,456,284.32
  5. Step 5: Solve for x
    x = 3,456,284.32/2,548.13
  6. Step 6: Final answer
    x = 1,356.40

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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.