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Finding the Fourth Proportional to 476,626.40, 714,939.04 and 121,640.40

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Solution

The fourth proportional to 476,626.40, 714,939.04 and 121,640.40 is: 182,460.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,626.40 : 714,939.04 = 121,640.40 : x
  2. Step 2: Convert to fraction form
    476,626.40/714,939.04 = 121,640.40/x
  3. Step 3: Cross multiply
    476,626.40x = 714,939.04 × 121,640.40
  4. Step 4: Simplify right side
    476,626.40x = 86,965,470,801.22
  5. Step 5: Solve for x
    x = 86,965,470,801.22/476,626.40
  6. Step 6: Final answer
    x = 182,460.46

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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.