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Finding the Fourth Proportional to 1,065.08, 1,598.33 and 603.79

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Solution

The fourth proportional to 1,065.08, 1,598.33 and 603.79 is: 906.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065.08 : 1,598.33 = 603.79 : x
  2. Step 2: Convert to fraction form
    1,065.08/1,598.33 = 603.79/x
  3. Step 3: Cross multiply
    1,065.08x = 1,598.33 × 603.79
  4. Step 4: Simplify right side
    1,065.08x = 965,053.18
  5. Step 5: Solve for x
    x = 965,053.18/1,065.08
  6. Step 6: Final answer
    x = 906.08

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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.