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Finding the Fourth Proportional to 1,596.78, 2,203.44 and 1,038.32

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Solution

The fourth proportional to 1,596.78, 2,203.44 and 1,038.32 is: 1,432.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,596.78 : 2,203.44 = 1,038.32 : x
  2. Step 2: Convert to fraction form
    1,596.78/2,203.44 = 1,038.32/x
  3. Step 3: Cross multiply
    1,596.78x = 2,203.44 × 1,038.32
  4. Step 4: Simplify right side
    1,596.78x = 2,287,869.17
  5. Step 5: Solve for x
    x = 2,287,869.17/1,596.78
  6. Step 6: Final answer
    x = 1,432.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.