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Finding the Fourth Proportional to 383,227.96, 528,870.90 and 213,462.16

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Solution

The fourth proportional to 383,227.96, 528,870.90 and 213,462.16 is: 294,586.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,227.96 : 528,870.90 = 213,462.16 : x
  2. Step 2: Convert to fraction form
    383,227.96/528,870.90 = 213,462.16/x
  3. Step 3: Cross multiply
    383,227.96x = 528,870.90 × 213,462.16
  4. Step 4: Simplify right side
    383,227.96x = 112,893,924,675.14
  5. Step 5: Solve for x
    x = 112,893,924,675.14/383,227.96
  6. Step 6: Final answer
    x = 294,586.87

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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.