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Finding the Fourth Proportional to 622,511.70, 933,767.55 and 453,237.90

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Solution

The fourth proportional to 622,511.70, 933,767.55 and 453,237.90 is: 679,856.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,511.70 : 933,767.55 = 453,237.90 : x
  2. Step 2: Convert to fraction form
    622,511.70/933,767.55 = 453,237.90/x
  3. Step 3: Cross multiply
    622,511.70x = 933,767.55 × 453,237.90
  4. Step 4: Simplify right side
    622,511.70x = 423,218,843,450.15
  5. Step 5: Solve for x
    x = 423,218,843,450.15/622,511.70
  6. Step 6: Final answer
    x = 679,856.85

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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.