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Finding the Fourth Proportional to 992.58, 1,480.58 and 924.54

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Solution

The fourth proportional to 992.58, 1,480.58 and 924.54 is: 1,379.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    992.58 : 1,480.58 = 924.54 : x
  2. Step 2: Convert to fraction form
    992.58/1,480.58 = 924.54/x
  3. Step 3: Cross multiply
    992.58x = 1,480.58 × 924.54
  4. Step 4: Simplify right side
    992.58x = 1,368,850.81
  5. Step 5: Solve for x
    x = 1,368,850.81/992.58
  6. Step 6: Final answer
    x = 1,379.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.