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Finding the Fourth Proportional to 440,691, 608,153.58 and 239,487

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Solution

The fourth proportional to 440,691, 608,153.58 and 239,487 is: 330,492.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,691 : 608,153.58 = 239,487 : x
  2. Step 2: Convert to fraction form
    440,691/608,153.58 = 239,487/x
  3. Step 3: Cross multiply
    440,691x = 608,153.58 × 239,487
  4. Step 4: Simplify right side
    440,691x = 145,644,876,413.46
  5. Step 5: Solve for x
    x = 145,644,876,413.46/440,691
  6. Step 6: Final answer
    x = 330,492.06

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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.