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Finding the Fourth Proportional to 608,648.73, 839,784.33 and 393,529.94

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Solution

The fourth proportional to 608,648.73, 839,784.33 and 393,529.94 is: 542,973.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,648.73 : 839,784.33 = 393,529.94 : x
  2. Step 2: Convert to fraction form
    608,648.73/839,784.33 = 393,529.94/x
  3. Step 3: Cross multiply
    608,648.73x = 839,784.33 × 393,529.94
  4. Step 4: Simplify right side
    608,648.73x = 330,480,276,997.84
  5. Step 5: Solve for x
    x = 330,480,276,997.84/608,648.73
  6. Step 6: Final answer
    x = 542,973.74

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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.