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Finding the Fourth Proportional to 3,503.60, 5,255.46 and 1,038.38

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Solution

The fourth proportional to 3,503.60, 5,255.46 and 1,038.38 is: 1,557.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,503.60 : 5,255.46 = 1,038.38 : x
  2. Step 2: Convert to fraction form
    3,503.60/5,255.46 = 1,038.38/x
  3. Step 3: Cross multiply
    3,503.60x = 5,255.46 × 1,038.38
  4. Step 4: Simplify right side
    3,503.60x = 5,457,164.55
  5. Step 5: Solve for x
    x = 5,457,164.55/3,503.60
  6. Step 6: Final answer
    x = 1,557.59

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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.