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Finding the Fourth Proportional to 423,912.10, 635,868.15 and 366,831.40

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Solution

The fourth proportional to 423,912.10, 635,868.15 and 366,831.40 is: 550,247.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,912.10 : 635,868.15 = 366,831.40 : x
  2. Step 2: Convert to fraction form
    423,912.10/635,868.15 = 366,831.40/x
  3. Step 3: Cross multiply
    423,912.10x = 635,868.15 × 366,831.40
  4. Step 4: Simplify right side
    423,912.10x = 233,256,403,679.91
  5. Step 5: Solve for x
    x = 233,256,403,679.91/423,912.10
  6. Step 6: Final answer
    x = 550,247.10

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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.