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Finding the Fourth Proportional to 618,767.66, 928,017.84 and 219,421.46

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Solution

The fourth proportional to 618,767.66, 928,017.84 and 219,421.46 is: 329,084.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,767.66 : 928,017.84 = 219,421.46 : x
  2. Step 2: Convert to fraction form
    618,767.66/928,017.84 = 219,421.46/x
  3. Step 3: Cross multiply
    618,767.66x = 928,017.84 × 219,421.46
  4. Step 4: Simplify right side
    618,767.66x = 203,627,029,358.85
  5. Step 5: Solve for x
    x = 203,627,029,358.85/618,767.66
  6. Step 6: Final answer
    x = 329,084.80

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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.