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Finding the Fourth Proportional to 528,851.32, 792,489.18 and 292,261.56

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Solution

The fourth proportional to 528,851.32, 792,489.18 and 292,261.56 is: 437,956.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,851.32 : 792,489.18 = 292,261.56 : x
  2. Step 2: Convert to fraction form
    528,851.32/792,489.18 = 292,261.56/x
  3. Step 3: Cross multiply
    528,851.32x = 792,489.18 × 292,261.56
  4. Step 4: Simplify right side
    528,851.32x = 231,614,124,029.92
  5. Step 5: Solve for x
    x = 231,614,124,029.92/528,851.32
  6. Step 6: Final answer
    x = 437,956.97

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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.