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Finding the Fourth Proportional to 619,285.84, 928,919.98 and 170,006.20

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Solution

The fourth proportional to 619,285.84, 928,919.98 and 170,006.20 is: 255,006.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,285.84 : 928,919.98 = 170,006.20 : x
  2. Step 2: Convert to fraction form
    619,285.84/928,919.98 = 170,006.20/x
  3. Step 3: Cross multiply
    619,285.84x = 928,919.98 × 170,006.20
  4. Step 4: Simplify right side
    619,285.84x = 157,922,155,903.88
  5. Step 5: Solve for x
    x = 157,922,155,903.88/619,285.84
  6. Step 6: Final answer
    x = 255,006.89

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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.