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Finding the Fourth Proportional to 3,032.22, 4,548.41 and 840.95

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Solution

The fourth proportional to 3,032.22, 4,548.41 and 840.95 is: 1,261.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,032.22 : 4,548.41 = 840.95 : x
  2. Step 2: Convert to fraction form
    3,032.22/4,548.41 = 840.95/x
  3. Step 3: Cross multiply
    3,032.22x = 4,548.41 × 840.95
  4. Step 4: Simplify right side
    3,032.22x = 3,824,985.39
  5. Step 5: Solve for x
    x = 3,824,985.39/3,032.22
  6. Step 6: Final answer
    x = 1,261.45

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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.