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Finding the Fourth Proportional to 1,046.95, 1,444.80 and 574.87

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Solution

The fourth proportional to 1,046.95, 1,444.80 and 574.87 is: 793.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.95 : 1,444.80 = 574.87 : x
  2. Step 2: Convert to fraction form
    1,046.95/1,444.80 = 574.87/x
  3. Step 3: Cross multiply
    1,046.95x = 1,444.80 × 574.87
  4. Step 4: Simplify right side
    1,046.95x = 830,563.70
  5. Step 5: Solve for x
    x = 830,563.70/1,046.95
  6. Step 6: Final answer
    x = 793.32

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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.