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Finding the Fourth Proportional to 953.98, 1,317.12 and 732.53

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Solution

The fourth proportional to 953.98, 1,317.12 and 732.53 is: 1,011.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.98 : 1,317.12 = 732.53 : x
  2. Step 2: Convert to fraction form
    953.98/1,317.12 = 732.53/x
  3. Step 3: Cross multiply
    953.98x = 1,317.12 × 732.53
  4. Step 4: Simplify right side
    953.98x = 964,829.91
  5. Step 5: Solve for x
    x = 964,829.91/953.98
  6. Step 6: Final answer
    x = 1,011.38

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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.