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Finding the Fourth Proportional to 1,049.60, 1,573.88 and 703.32

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Solution

The fourth proportional to 1,049.60, 1,573.88 and 703.32 is: 1,054.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.60 : 1,573.88 = 703.32 : x
  2. Step 2: Convert to fraction form
    1,049.60/1,573.88 = 703.32/x
  3. Step 3: Cross multiply
    1,049.60x = 1,573.88 × 703.32
  4. Step 4: Simplify right side
    1,049.60x = 1,106,941.28
  5. Step 5: Solve for x
    x = 1,106,941.28/1,049.60
  6. Step 6: Final answer
    x = 1,054.63

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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.