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Finding the Fourth Proportional to 1,559.84, 2,337.74 and 634.32

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Solution

The fourth proportional to 1,559.84, 2,337.74 and 634.32 is: 950.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559.84 : 2,337.74 = 634.32 : x
  2. Step 2: Convert to fraction form
    1,559.84/2,337.74 = 634.32/x
  3. Step 3: Cross multiply
    1,559.84x = 2,337.74 × 634.32
  4. Step 4: Simplify right side
    1,559.84x = 1,482,875.24
  5. Step 5: Solve for x
    x = 1,482,875.24/1,559.84
  6. Step 6: Final answer
    x = 950.66

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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.