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Finding the Fourth Proportional to 944.16, 1,417.84 and 615.66

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Solution

The fourth proportional to 944.16, 1,417.84 and 615.66 is: 924.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.16 : 1,417.84 = 615.66 : x
  2. Step 2: Convert to fraction form
    944.16/1,417.84 = 615.66/x
  3. Step 3: Cross multiply
    944.16x = 1,417.84 × 615.66
  4. Step 4: Simplify right side
    944.16x = 872,900.75
  5. Step 5: Solve for x
    x = 872,900.75/944.16
  6. Step 6: Final answer
    x = 924.53

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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.