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Finding the Fourth Proportional to 573,479.16, 791,434.06 and 318,846.75

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Solution

The fourth proportional to 573,479.16, 791,434.06 and 318,846.75 is: 440,026.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,479.16 : 791,434.06 = 318,846.75 : x
  2. Step 2: Convert to fraction form
    573,479.16/791,434.06 = 318,846.75/x
  3. Step 3: Cross multiply
    573,479.16x = 791,434.06 × 318,846.75
  4. Step 4: Simplify right side
    573,479.16x = 252,346,174,105.31
  5. Step 5: Solve for x
    x = 252,346,174,105.31/573,479.16
  6. Step 6: Final answer
    x = 440,026.76

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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.