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Finding the Fourth Proportional to 565,679.74, 850,074.81 and 528,691.90

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Solution

The fourth proportional to 565,679.74, 850,074.81 and 528,691.90 is: 794,491.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,679.74 : 850,074.81 = 528,691.90 : x
  2. Step 2: Convert to fraction form
    565,679.74/850,074.81 = 528,691.90/x
  3. Step 3: Cross multiply
    565,679.74x = 850,074.81 × 528,691.90
  4. Step 4: Simplify right side
    565,679.74x = 449,427,666,441.04
  5. Step 5: Solve for x
    x = 449,427,666,441.04/565,679.74
  6. Step 6: Final answer
    x = 794,491.36

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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.