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Finding the Fourth Proportional to 528,057.90, 792,086.85 and 403,641.90

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Solution

The fourth proportional to 528,057.90, 792,086.85 and 403,641.90 is: 605,462.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,057.90 : 792,086.85 = 403,641.90 : x
  2. Step 2: Convert to fraction form
    528,057.90/792,086.85 = 403,641.90/x
  3. Step 3: Cross multiply
    528,057.90x = 792,086.85 × 403,641.90
  4. Step 4: Simplify right side
    528,057.90x = 319,719,441,099.02
  5. Step 5: Solve for x
    x = 319,719,441,099.02/528,057.90
  6. Step 6: Final answer
    x = 605,462.85

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1.5x scale

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.