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Finding the Fourth Proportional to 468,718.59, 646,831.46 and 253,858.67

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Solution

The fourth proportional to 468,718.59, 646,831.46 and 253,858.67 is: 350,324.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,718.59 : 646,831.46 = 253,858.67 : x
  2. Step 2: Convert to fraction form
    468,718.59/646,831.46 = 253,858.67/x
  3. Step 3: Cross multiply
    468,718.59x = 646,831.46 × 253,858.67
  4. Step 4: Simplify right side
    468,718.59x = 164,203,771,550.25
  5. Step 5: Solve for x
    x = 164,203,771,550.25/468,718.59
  6. Step 6: Final answer
    x = 350,324.85

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1.5x scale

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.