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Finding the Fourth Proportional to 474,515.75, 654,831.79 and 259,655.87

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Solution

The fourth proportional to 474,515.75, 654,831.79 and 259,655.87 is: 358,325.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,515.75 : 654,831.79 = 259,655.87 : x
  2. Step 2: Convert to fraction form
    474,515.75/654,831.79 = 259,655.87/x
  3. Step 3: Cross multiply
    474,515.75x = 654,831.79 × 259,655.87
  4. Step 4: Simplify right side
    474,515.75x = 170,030,919,124.05
  5. Step 5: Solve for x
    x = 170,030,919,124.05/474,515.75
  6. Step 6: Final answer
    x = 358,325.13

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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.