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Finding the Fourth Proportional to 1,197.19, 1,795.65 and 417.06

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Solution

The fourth proportional to 1,197.19, 1,795.65 and 417.06 is: 625.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197.19 : 1,795.65 = 417.06 : x
  2. Step 2: Convert to fraction form
    1,197.19/1,795.65 = 417.06/x
  3. Step 3: Cross multiply
    1,197.19x = 1,795.65 × 417.06
  4. Step 4: Simplify right side
    1,197.19x = 748,893.79
  5. Step 5: Solve for x
    x = 748,893.79/1,197.19
  6. Step 6: Final answer
    x = 625.54

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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.