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Finding the Fourth Proportional to 618,043.34, 852,986.22 and 446,516.42

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Solution

The fourth proportional to 618,043.34, 852,986.22 and 446,516.42 is: 616,255.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,043.34 : 852,986.22 = 446,516.42 : x
  2. Step 2: Convert to fraction form
    618,043.34/852,986.22 = 446,516.42/x
  3. Step 3: Cross multiply
    618,043.34x = 852,986.22 × 446,516.42
  4. Step 4: Simplify right side
    618,043.34x = 380,872,353,263.73
  5. Step 5: Solve for x
    x = 380,872,353,263.73/618,043.34
  6. Step 6: Final answer
    x = 616,255.09

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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.