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Finding the Fourth Proportional to 464,434.43, 640,326.22 and 300,801.87

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Solution

The fourth proportional to 464,434.43, 640,326.22 and 300,801.87 is: 414,722.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,434.43 : 640,326.22 = 300,801.87 : x
  2. Step 2: Convert to fraction form
    464,434.43/640,326.22 = 300,801.87/x
  3. Step 3: Cross multiply
    464,434.43x = 640,326.22 × 300,801.87
  4. Step 4: Simplify right side
    464,434.43x = 192,611,323,634.03
  5. Step 5: Solve for x
    x = 192,611,323,634.03/464,434.43
  6. Step 6: Final answer
    x = 414,722.32

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1.5x scale

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.