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Finding the Fourth Proportional to 924.60, 1,277.10 and 904.44

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Solution

The fourth proportional to 924.60, 1,277.10 and 904.44 is: 1,249.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    924.60 : 1,277.10 = 904.44 : x
  2. Step 2: Convert to fraction form
    924.60/1,277.10 = 904.44/x
  3. Step 3: Cross multiply
    924.60x = 1,277.10 × 904.44
  4. Step 4: Simplify right side
    924.60x = 1,155,060.32
  5. Step 5: Solve for x
    x = 1,155,060.32/924.60
  6. Step 6: Final answer
    x = 1,249.25

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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.