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Finding the Fourth Proportional to 922,645.30, 1,382,801.55 and 822,334.90

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Solution

The fourth proportional to 922,645.30, 1,382,801.55 and 822,334.90 is: 1,232,462.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,645.30 : 1,382,801.55 = 822,334.90 : x
  2. Step 2: Convert to fraction form
    922,645.30/1,382,801.55 = 822,334.90/x
  3. Step 3: Cross multiply
    922,645.30x = 1,382,801.55 × 822,334.90
  4. Step 4: Simplify right side
    922,645.30x = 1,137,125,974,339.10
  5. Step 5: Solve for x
    x = 1,137,125,974,339.10/922,645.30
  6. Step 6: Final answer
    x = 1,232,462.76

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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.