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Finding the Fourth Proportional to 563,907.66, 778,120.66 and 322,205.90

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Solution

The fourth proportional to 563,907.66, 778,120.66 and 322,205.90 is: 444,603.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,907.66 : 778,120.66 = 322,205.90 : x
  2. Step 2: Convert to fraction form
    563,907.66/778,120.66 = 322,205.90/x
  3. Step 3: Cross multiply
    563,907.66x = 778,120.66 × 322,205.90
  4. Step 4: Simplify right side
    563,907.66x = 250,715,067,563.89
  5. Step 5: Solve for x
    x = 250,715,067,563.89/563,907.66
  6. Step 6: Final answer
    x = 444,603.05

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Why These Related Problems?

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