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Finding the Fourth Proportional to 965,831.68, 1,332,781 and 536,078

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Solution

The fourth proportional to 965,831.68, 1,332,781 and 536,078 is: 739,750.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,831.68 : 1,332,781 = 536,078 : x
  2. Step 2: Convert to fraction form
    965,831.68/1,332,781 = 536,078/x
  3. Step 3: Cross multiply
    965,831.68x = 1,332,781 × 536,078
  4. Step 4: Simplify right side
    965,831.68x = 714,474,572,918
  5. Step 5: Solve for x
    x = 714,474,572,918/965,831.68
  6. Step 6: Final answer
    x = 739,750.61

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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.