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Finding the Fourth Proportional to 1,041.84, 1,437.57 and 576

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Solution

The fourth proportional to 1,041.84, 1,437.57 and 576 is: 794.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041.84 : 1,437.57 = 576 : x
  2. Step 2: Convert to fraction form
    1,041.84/1,437.57 = 576/x
  3. Step 3: Cross multiply
    1,041.84x = 1,437.57 × 576
  4. Step 4: Simplify right side
    1,041.84x = 828,040.32
  5. Step 5: Solve for x
    x = 828,040.32/1,041.84
  6. Step 6: Final answer
    x = 794.79

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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.