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Finding the Fourth Proportional to 1,057.94, 1,587.01 and 364.52

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Solution

The fourth proportional to 1,057.94, 1,587.01 and 364.52 is: 546.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057.94 : 1,587.01 = 364.52 : x
  2. Step 2: Convert to fraction form
    1,057.94/1,587.01 = 364.52/x
  3. Step 3: Cross multiply
    1,057.94x = 1,587.01 × 364.52
  4. Step 4: Simplify right side
    1,057.94x = 578,488.95
  5. Step 5: Solve for x
    x = 578,488.95/1,057.94
  6. Step 6: Final answer
    x = 546.81

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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.