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Finding the Fourth Proportional to 953.84, 1,316 and 560.96

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Solution

The fourth proportional to 953.84, 1,316 and 560.96 is: 773.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.84 : 1,316 = 560.96 : x
  2. Step 2: Convert to fraction form
    953.84/1,316 = 560.96/x
  3. Step 3: Cross multiply
    953.84x = 1,316 × 560.96
  4. Step 4: Simplify right side
    953.84x = 738,223.36
  5. Step 5: Solve for x
    x = 738,223.36/953.84
  6. Step 6: Final answer
    x = 773.95

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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.