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Finding the Fourth Proportional to 1,135.01, 1,702.79 and 476.53

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Solution

The fourth proportional to 1,135.01, 1,702.79 and 476.53 is: 714.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135.01 : 1,702.79 = 476.53 : x
  2. Step 2: Convert to fraction form
    1,135.01/1,702.79 = 476.53/x
  3. Step 3: Cross multiply
    1,135.01x = 1,702.79 × 476.53
  4. Step 4: Simplify right side
    1,135.01x = 811,430.52
  5. Step 5: Solve for x
    x = 811,430.52/1,135.01
  6. Step 6: Final answer
    x = 714.91

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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.