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Finding the Fourth Proportional to 995.88, 1,374.50 and 603.24

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Solution

The fourth proportional to 995.88, 1,374.50 and 603.24 is: 832.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.88 : 1,374.50 = 603.24 : x
  2. Step 2: Convert to fraction form
    995.88/1,374.50 = 603.24/x
  3. Step 3: Cross multiply
    995.88x = 1,374.50 × 603.24
  4. Step 4: Simplify right side
    995.88x = 829,153.38
  5. Step 5: Solve for x
    x = 829,153.38/995.88
  6. Step 6: Final answer
    x = 832.58

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1.5x scale

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.