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Finding the Fourth Proportional to 1,070.34, 1,476.90 and 598.11

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Solution

The fourth proportional to 1,070.34, 1,476.90 and 598.11 is: 825.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070.34 : 1,476.90 = 598.11 : x
  2. Step 2: Convert to fraction form
    1,070.34/1,476.90 = 598.11/x
  3. Step 3: Cross multiply
    1,070.34x = 1,476.90 × 598.11
  4. Step 4: Simplify right side
    1,070.34x = 883,348.66
  5. Step 5: Solve for x
    x = 883,348.66/1,070.34
  6. Step 6: Final answer
    x = 825.30

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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.