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Finding the Fourth Proportional to 383,294.37, 528,924.38 and 219,916.24

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Solution

The fourth proportional to 383,294.37, 528,924.38 and 219,916.24 is: 303,471.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,294.37 : 528,924.38 = 219,916.24 : x
  2. Step 2: Convert to fraction form
    383,294.37/528,924.38 = 219,916.24/x
  3. Step 3: Cross multiply
    383,294.37x = 528,924.38 × 219,916.24
  4. Step 4: Simplify right side
    383,294.37x = 116,319,060,893.93
  5. Step 5: Solve for x
    x = 116,319,060,893.93/383,294.37
  6. Step 6: Final answer
    x = 303,471.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.