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Finding the Fourth Proportional to 611,092.42, 843,294.85 and 339,144.51

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Solution

The fourth proportional to 611,092.42, 843,294.85 and 339,144.51 is: 468,012.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,092.42 : 843,294.85 = 339,144.51 : x
  2. Step 2: Convert to fraction form
    611,092.42/843,294.85 = 339,144.51/x
  3. Step 3: Cross multiply
    611,092.42x = 843,294.85 × 339,144.51
  4. Step 4: Simplify right side
    611,092.42x = 285,998,818,688.77
  5. Step 5: Solve for x
    x = 285,998,818,688.77/611,092.42
  6. Step 6: Final answer
    x = 468,012.38

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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.