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Finding the Fourth Proportional to 528,041.90, 792,062.85 and 291,845.90

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Solution

The fourth proportional to 528,041.90, 792,062.85 and 291,845.90 is: 437,768.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,041.90 : 792,062.85 = 291,845.90 : x
  2. Step 2: Convert to fraction form
    528,041.90/792,062.85 = 291,845.90/x
  3. Step 3: Cross multiply
    528,041.90x = 792,062.85 × 291,845.90
  4. Step 4: Simplify right side
    528,041.90x = 231,160,295,314.82
  5. Step 5: Solve for x
    x = 231,160,295,314.82/528,041.90
  6. Step 6: Final answer
    x = 437,768.85

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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.