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Finding the Fourth Proportional to 618,765.16, 928,014.08 and 219,418.96

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Solution

The fourth proportional to 618,765.16, 928,014.08 and 219,418.96 is: 329,081.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,765.16 : 928,014.08 = 219,418.96 : x
  2. Step 2: Convert to fraction form
    618,765.16/928,014.08 = 219,418.96/x
  3. Step 3: Cross multiply
    618,765.16x = 928,014.08 × 219,418.96
  4. Step 4: Simplify right side
    618,765.16x = 203,623,884,298.96
  5. Step 5: Solve for x
    x = 203,623,884,298.96/618,765.16
  6. Step 6: Final answer
    x = 329,081.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.