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Finding the Fourth Proportional to 1,050.03, 1,574.99 and 356.70

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Solution

The fourth proportional to 1,050.03, 1,574.99 and 356.70 is: 535.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.03 : 1,574.99 = 356.70 : x
  2. Step 2: Convert to fraction form
    1,050.03/1,574.99 = 356.70/x
  3. Step 3: Cross multiply
    1,050.03x = 1,574.99 × 356.70
  4. Step 4: Simplify right side
    1,050.03x = 561,797.15
  5. Step 5: Solve for x
    x = 561,797.15/1,050.03
  6. Step 6: Final answer
    x = 535.03

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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.