Home / 1,318,690.52-1,978,076.11-454,116.16

Finding the Fourth Proportional to 1,318,690.52, 1,978,076.11 and 454,116.16

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Solution

The fourth proportional to 1,318,690.52, 1,978,076.11 and 454,116.16 is: 681,188.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,690.52 : 1,978,076.11 = 454,116.16 : x
  2. Step 2: Convert to fraction form
    1,318,690.52/1,978,076.11 = 454,116.16/x
  3. Step 3: Cross multiply
    1,318,690.52x = 1,978,076.11 × 454,116.16
  4. Step 4: Simplify right side
    1,318,690.52x = 898,276,327,260.94
  5. Step 5: Solve for x
    x = 898,276,327,260.94/1,318,690.52
  6. Step 6: Final answer
    x = 681,188.13

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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.