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Finding the Fourth Proportional to 440,520.72, 608,211.08 and 338,363.52

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Solution

The fourth proportional to 440,520.72, 608,211.08 and 338,363.52 is: 467,166.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,520.72 : 608,211.08 = 338,363.52 : x
  2. Step 2: Convert to fraction form
    440,520.72/608,211.08 = 338,363.52/x
  3. Step 3: Cross multiply
    440,520.72x = 608,211.08 × 338,363.52
  4. Step 4: Simplify right side
    440,520.72x = 205,796,441,931.80
  5. Step 5: Solve for x
    x = 205,796,441,931.80/440,520.72
  6. Step 6: Final answer
    x = 467,166.32

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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.