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Finding the Fourth Proportional to 446,428.32, 669,643.68 and 109,470.48

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Solution

The fourth proportional to 446,428.32, 669,643.68 and 109,470.48 is: 164,206.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,428.32 : 669,643.68 = 109,470.48 : x
  2. Step 2: Convert to fraction form
    446,428.32/669,643.68 = 109,470.48/x
  3. Step 3: Cross multiply
    446,428.32x = 669,643.68 × 109,470.48
  4. Step 4: Simplify right side
    446,428.32x = 73,306,215,078.57
  5. Step 5: Solve for x
    x = 73,306,215,078.57/446,428.32
  6. Step 6: Final answer
    x = 164,206.01

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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.