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Finding the Fourth Proportional to 664,801.26, 917,422.11 and 362,993.10

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Solution

The fourth proportional to 664,801.26, 917,422.11 and 362,993.10 is: 500,928.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,801.26 : 917,422.11 = 362,993.10 : x
  2. Step 2: Convert to fraction form
    664,801.26/917,422.11 = 362,993.10/x
  3. Step 3: Cross multiply
    664,801.26x = 917,422.11 × 362,993.10
  4. Step 4: Simplify right side
    664,801.26x = 333,017,895,717.44
  5. Step 5: Solve for x
    x = 333,017,895,717.44/664,801.26
  6. Step 6: Final answer
    x = 500,928.50

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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.