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Finding the Fourth Proportional to 1,153.04, 1,729.48 and 469.04

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Solution

The fourth proportional to 1,153.04, 1,729.48 and 469.04 is: 703.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153.04 : 1,729.48 = 469.04 : x
  2. Step 2: Convert to fraction form
    1,153.04/1,729.48 = 469.04/x
  3. Step 3: Cross multiply
    1,153.04x = 1,729.48 × 469.04
  4. Step 4: Simplify right side
    1,153.04x = 811,195.30
  5. Step 5: Solve for x
    x = 811,195.30/1,153.04
  6. Step 6: Final answer
    x = 703.53

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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.