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Finding the Fourth Proportional to 528,463.47, 792,693.07 and 191,425.25

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Solution

The fourth proportional to 528,463.47, 792,693.07 and 191,425.25 is: 287,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,463.47 : 792,693.07 = 191,425.25 : x
  2. Step 2: Convert to fraction form
    528,463.47/792,693.07 = 191,425.25/x
  3. Step 3: Cross multiply
    528,463.47x = 792,693.07 × 191,425.25
  4. Step 4: Simplify right side
    528,463.47x = 151,741,469,098.02
  5. Step 5: Solve for x
    x = 151,741,469,098.02/528,463.47
  6. Step 6: Final answer
    x = 287,137.10

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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.