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Finding the Fourth Proportional to 409,558.64, 565,193.70 and 228,282.23

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Solution

The fourth proportional to 409,558.64, 565,193.70 and 228,282.23 is: 315,031.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,558.64 : 565,193.70 = 228,282.23 : x
  2. Step 2: Convert to fraction form
    409,558.64/565,193.70 = 228,282.23/x
  3. Step 3: Cross multiply
    409,558.64x = 565,193.70 × 228,282.23
  4. Step 4: Simplify right side
    409,558.64x = 129,023,678,217.95
  5. Step 5: Solve for x
    x = 129,023,678,217.95/409,558.64
  6. Step 6: Final answer
    x = 315,031.03

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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.