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Finding the Fourth Proportional to 944.79, 1,416.67 and 351.51

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Solution

The fourth proportional to 944.79, 1,416.67 and 351.51 is: 527.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.79 : 1,416.67 = 351.51 : x
  2. Step 2: Convert to fraction form
    944.79/1,416.67 = 351.51/x
  3. Step 3: Cross multiply
    944.79x = 1,416.67 × 351.51
  4. Step 4: Simplify right side
    944.79x = 497,971.91
  5. Step 5: Solve for x
    x = 497,971.91/944.79
  6. Step 6: Final answer
    x = 527.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.