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Finding the Fourth Proportional to 1,360, 1,877.88 and 1,066.78

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Solution

The fourth proportional to 1,360, 1,877.88 and 1,066.78 is: 1,473.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360 : 1,877.88 = 1,066.78 : x
  2. Step 2: Convert to fraction form
    1,360/1,877.88 = 1,066.78/x
  3. Step 3: Cross multiply
    1,360x = 1,877.88 × 1,066.78
  4. Step 4: Simplify right side
    1,360x = 2,003,284.83
  5. Step 5: Solve for x
    x = 2,003,284.83/1,360
  6. Step 6: Final answer
    x = 1,473.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.