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Finding the Fourth Proportional to 1,173.56, 1,617.77 and 924.38

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Solution

The fourth proportional to 1,173.56, 1,617.77 and 924.38 is: 1,274.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.56 : 1,617.77 = 924.38 : x
  2. Step 2: Convert to fraction form
    1,173.56/1,617.77 = 924.38/x
  3. Step 3: Cross multiply
    1,173.56x = 1,617.77 × 924.38
  4. Step 4: Simplify right side
    1,173.56x = 1,495,434.52
  5. Step 5: Solve for x
    x = 1,495,434.52/1,173.56
  6. Step 6: Final answer
    x = 1,274.28

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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.