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Finding the Fourth Proportional to 464,297.51, 640,863.43 and 273,421.62

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Solution

The fourth proportional to 464,297.51, 640,863.43 and 273,421.62 is: 377,400.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,297.51 : 640,863.43 = 273,421.62 : x
  2. Step 2: Convert to fraction form
    464,297.51/640,863.43 = 273,421.62/x
  3. Step 3: Cross multiply
    464,297.51x = 640,863.43 × 273,421.62
  4. Step 4: Simplify right side
    464,297.51x = 175,225,916,545.80
  5. Step 5: Solve for x
    x = 175,225,916,545.80/464,297.51
  6. Step 6: Final answer
    x = 377,400.08

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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.