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Finding the Fourth Proportional to 610,622.58, 842,760.08 and 338,778.03

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Solution

The fourth proportional to 610,622.58, 842,760.08 and 338,778.03 is: 467,569.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,622.58 : 842,760.08 = 338,778.03 : x
  2. Step 2: Convert to fraction form
    610,622.58/842,760.08 = 338,778.03/x
  3. Step 3: Cross multiply
    610,622.58x = 842,760.08 × 338,778.03
  4. Step 4: Simplify right side
    610,622.58x = 285,508,597,971.15
  5. Step 5: Solve for x
    x = 285,508,597,971.15/610,622.58
  6. Step 6: Final answer
    x = 467,569.67

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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.