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Finding the Fourth Proportional to 341,400.70, 512,101.05 and 216,831.10

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Solution

The fourth proportional to 341,400.70, 512,101.05 and 216,831.10 is: 325,246.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,400.70 : 512,101.05 = 216,831.10 : x
  2. Step 2: Convert to fraction form
    341,400.70/512,101.05 = 216,831.10/x
  3. Step 3: Cross multiply
    341,400.70x = 512,101.05 × 216,831.10
  4. Step 4: Simplify right side
    341,400.70x = 111,039,433,982.66
  5. Step 5: Solve for x
    x = 111,039,433,982.66/341,400.70
  6. Step 6: Final answer
    x = 325,246.65

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1.5x scale

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.