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Finding the Fourth Proportional to 1,186.08, 1,776.29 and 924.18

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Solution

The fourth proportional to 1,186.08, 1,776.29 and 924.18 is: 1,384.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186.08 : 1,776.29 = 924.18 : x
  2. Step 2: Convert to fraction form
    1,186.08/1,776.29 = 924.18/x
  3. Step 3: Cross multiply
    1,186.08x = 1,776.29 × 924.18
  4. Step 4: Simplify right side
    1,186.08x = 1,641,607.07
  5. Step 5: Solve for x
    x = 1,641,607.07/1,186.08
  6. Step 6: Final answer
    x = 1,384.06

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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.