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Finding the Fourth Proportional to 1,235.17, 1,851.16 and 924.59

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Solution

The fourth proportional to 1,235.17, 1,851.16 and 924.59 is: 1,385.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235.17 : 1,851.16 = 924.59 : x
  2. Step 2: Convert to fraction form
    1,235.17/1,851.16 = 924.59/x
  3. Step 3: Cross multiply
    1,235.17x = 1,851.16 × 924.59
  4. Step 4: Simplify right side
    1,235.17x = 1,711,550.15
  5. Step 5: Solve for x
    x = 1,711,550.15/1,235.17
  6. Step 6: Final answer
    x = 1,385.69

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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.