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Finding the Fourth Proportional to 488,707.49, 732,831.20 and 189,328.25

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Solution

The fourth proportional to 488,707.49, 732,831.20 and 189,328.25 is: 283,903.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,707.49 : 732,831.20 = 189,328.25 : x
  2. Step 2: Convert to fraction form
    488,707.49/732,831.20 = 189,328.25/x
  3. Step 3: Cross multiply
    488,707.49x = 732,831.20 × 189,328.25
  4. Step 4: Simplify right side
    488,707.49x = 138,745,650,236.82
  5. Step 5: Solve for x
    x = 138,745,650,236.82/488,707.49
  6. Step 6: Final answer
    x = 283,903.26

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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.