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Finding the Fourth Proportional to 427,801.63, 590,370.92 and 236,818.21

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Solution

The fourth proportional to 427,801.63, 590,370.92 and 236,818.21 is: 326,811.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,801.63 : 590,370.92 = 236,818.21 : x
  2. Step 2: Convert to fraction form
    427,801.63/590,370.92 = 236,818.21/x
  3. Step 3: Cross multiply
    427,801.63x = 590,370.92 × 236,818.21
  4. Step 4: Simplify right side
    427,801.63x = 139,810,584,510.45
  5. Step 5: Solve for x
    x = 139,810,584,510.45/427,801.63
  6. Step 6: Final answer
    x = 326,811.72

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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.