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Finding the Fourth Proportional to 1,124.43, 1,552.19 and 705.02

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Solution

The fourth proportional to 1,124.43, 1,552.19 and 705.02 is: 973.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.43 : 1,552.19 = 705.02 : x
  2. Step 2: Convert to fraction form
    1,124.43/1,552.19 = 705.02/x
  3. Step 3: Cross multiply
    1,124.43x = 1,552.19 × 705.02
  4. Step 4: Simplify right side
    1,124.43x = 1,094,323.49
  5. Step 5: Solve for x
    x = 1,094,323.49/1,124.43
  6. Step 6: Final answer
    x = 973.23

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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.