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Finding the Fourth Proportional to 1,070.06, 1,476.47 and 604.30

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Solution

The fourth proportional to 1,070.06, 1,476.47 and 604.30 is: 833.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070.06 : 1,476.47 = 604.30 : x
  2. Step 2: Convert to fraction form
    1,070.06/1,476.47 = 604.30/x
  3. Step 3: Cross multiply
    1,070.06x = 1,476.47 × 604.30
  4. Step 4: Simplify right side
    1,070.06x = 892,230.82
  5. Step 5: Solve for x
    x = 892,230.82/1,070.06
  6. Step 6: Final answer
    x = 833.81

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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.