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Finding the Fourth Proportional to 1,705.42, 2,352.64 and 1,041.12

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Solution

The fourth proportional to 1,705.42, 2,352.64 and 1,041.12 is: 1,436.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.42 : 2,352.64 = 1,041.12 : x
  2. Step 2: Convert to fraction form
    1,705.42/2,352.64 = 1,041.12/x
  3. Step 3: Cross multiply
    1,705.42x = 2,352.64 × 1,041.12
  4. Step 4: Simplify right side
    1,705.42x = 2,449,368.79
  5. Step 5: Solve for x
    x = 2,449,368.79/1,705.42
  6. Step 6: Final answer
    x = 1,436.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.