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Finding the Fourth Proportional to 1,104.52, 1,656.80 and 374.08

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Solution

The fourth proportional to 1,104.52, 1,656.80 and 374.08 is: 561.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104.52 : 1,656.80 = 374.08 : x
  2. Step 2: Convert to fraction form
    1,104.52/1,656.80 = 374.08/x
  3. Step 3: Cross multiply
    1,104.52x = 1,656.80 × 374.08
  4. Step 4: Simplify right side
    1,104.52x = 619,775.74
  5. Step 5: Solve for x
    x = 619,775.74/1,104.52
  6. Step 6: Final answer
    x = 561.13

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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.