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Finding the Fourth Proportional to 464,298.51, 640,864.81 and 273,422.62

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Solution

The fourth proportional to 464,298.51, 640,864.81 and 273,422.62 is: 377,401.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,298.51 : 640,864.81 = 273,422.62 : x
  2. Step 2: Convert to fraction form
    464,298.51/640,864.81 = 273,422.62/x
  3. Step 3: Cross multiply
    464,298.51x = 640,864.81 × 273,422.62
  4. Step 4: Simplify right side
    464,298.51x = 175,226,935,416.00
  5. Step 5: Solve for x
    x = 175,226,935,416.00/464,298.51
  6. Step 6: Final answer
    x = 377,401.46

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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.