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Finding the Fourth Proportional to 922,151.10, 1,383,226.65 and 916,246.20

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Solution

The fourth proportional to 922,151.10, 1,383,226.65 and 916,246.20 is: 1,374,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,151.10 : 1,383,226.65 = 916,246.20 : x
  2. Step 2: Convert to fraction form
    922,151.10/1,383,226.65 = 916,246.20/x
  3. Step 3: Cross multiply
    922,151.10x = 1,383,226.65 × 916,246.20
  4. Step 4: Simplify right side
    922,151.10x = 1,267,376,161,801.23
  5. Step 5: Solve for x
    x = 1,267,376,161,801.23/922,151.10
  6. Step 6: Final answer
    x = 1,374,369.30

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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.