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Finding the Fourth Proportional to 528,449.70, 792,672.41 and 191,411.47

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Solution

The fourth proportional to 528,449.70, 792,672.41 and 191,411.47 is: 287,116.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,449.70 : 792,672.41 = 191,411.47 : x
  2. Step 2: Convert to fraction form
    528,449.70/792,672.41 = 191,411.47/x
  3. Step 3: Cross multiply
    528,449.70x = 792,672.41 × 191,411.47
  4. Step 4: Simplify right side
    528,449.70x = 151,726,592,695.91
  5. Step 5: Solve for x
    x = 151,726,592,695.91/528,449.70
  6. Step 6: Final answer
    x = 287,116.43

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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.