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Finding the Fourth Proportional to 703.92, 1,055.48 and 589.08

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Solution

The fourth proportional to 703.92, 1,055.48 and 589.08 is: 883.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.92 : 1,055.48 = 589.08 : x
  2. Step 2: Convert to fraction form
    703.92/1,055.48 = 589.08/x
  3. Step 3: Cross multiply
    703.92x = 1,055.48 × 589.08
  4. Step 4: Simplify right side
    703.92x = 621,762.16
  5. Step 5: Solve for x
    x = 621,762.16/703.92
  6. Step 6: Final answer
    x = 883.29

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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.