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Finding the Fourth Proportional to 1,043.89, 1,565.07 and 632.94

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Solution

The fourth proportional to 1,043.89, 1,565.07 and 632.94 is: 948.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043.89 : 1,565.07 = 632.94 : x
  2. Step 2: Convert to fraction form
    1,043.89/1,565.07 = 632.94/x
  3. Step 3: Cross multiply
    1,043.89x = 1,565.07 × 632.94
  4. Step 4: Simplify right side
    1,043.89x = 990,595.41
  5. Step 5: Solve for x
    x = 990,595.41/1,043.89
  6. Step 6: Final answer
    x = 948.95

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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.