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Finding the Fourth Proportional to 379,843.57, 524,345.53 and 236,674.35

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Solution

The fourth proportional to 379,843.57, 524,345.53 and 236,674.35 is: 326,711.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,843.57 : 524,345.53 = 236,674.35 : x
  2. Step 2: Convert to fraction form
    379,843.57/524,345.53 = 236,674.35/x
  3. Step 3: Cross multiply
    379,843.57x = 524,345.53 × 236,674.35
  4. Step 4: Simplify right side
    379,843.57x = 124,099,136,896.47
  5. Step 5: Solve for x
    x = 124,099,136,896.47/379,843.57
  6. Step 6: Final answer
    x = 326,711.17

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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.