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Finding the Fourth Proportional to 1,048.50, 1,572.75 and 364.50

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Solution

The fourth proportional to 1,048.50, 1,572.75 and 364.50 is: 546.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.50 : 1,572.75 = 364.50 : x
  2. Step 2: Convert to fraction form
    1,048.50/1,572.75 = 364.50/x
  3. Step 3: Cross multiply
    1,048.50x = 1,572.75 × 364.50
  4. Step 4: Simplify right side
    1,048.50x = 573,267.38
  5. Step 5: Solve for x
    x = 573,267.38/1,048.50
  6. Step 6: Final answer
    x = 546.75

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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.