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Finding the Fourth Proportional to 568,374.64, 784,357.08 and 313,725.92

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Solution

The fourth proportional to 568,374.64, 784,357.08 and 313,725.92 is: 432,941.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,374.64 : 784,357.08 = 313,725.92 : x
  2. Step 2: Convert to fraction form
    568,374.64/784,357.08 = 313,725.92/x
  3. Step 3: Cross multiply
    568,374.64x = 784,357.08 × 313,725.92
  4. Step 4: Simplify right side
    568,374.64x = 246,073,146,531.51
  5. Step 5: Solve for x
    x = 246,073,146,531.51/568,374.64
  6. Step 6: Final answer
    x = 432,941.81

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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.