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Finding the Fourth Proportional to 608,643.73, 839,777.44 and 393,524.94

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Solution

The fourth proportional to 608,643.73, 839,777.44 and 393,524.94 is: 542,966.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,643.73 : 839,777.44 = 393,524.94 : x
  2. Step 2: Convert to fraction form
    608,643.73/839,777.44 = 393,524.94/x
  3. Step 3: Cross multiply
    608,643.73x = 839,777.44 × 393,524.94
  4. Step 4: Simplify right side
    608,643.73x = 330,473,364,721.73
  5. Step 5: Solve for x
    x = 330,473,364,721.73/608,643.73
  6. Step 6: Final answer
    x = 542,966.85

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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.