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Finding the Fourth Proportional to 605,843.10, 908,764.65 and 558,603.90

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Solution

The fourth proportional to 605,843.10, 908,764.65 and 558,603.90 is: 837,905.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,843.10 : 908,764.65 = 558,603.90 : x
  2. Step 2: Convert to fraction form
    605,843.10/908,764.65 = 558,603.90/x
  3. Step 3: Cross multiply
    605,843.10x = 908,764.65 × 558,603.90
  4. Step 4: Simplify right side
    605,843.10x = 507,639,477,672.14
  5. Step 5: Solve for x
    x = 507,639,477,672.14/605,843.10
  6. Step 6: Final answer
    x = 837,905.85

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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.