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Finding the Fourth Proportional to 459,040.22, 633,435.17 and 255,078.21

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Solution

The fourth proportional to 459,040.22, 633,435.17 and 255,078.21 is: 351,985.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,040.22 : 633,435.17 = 255,078.21 : x
  2. Step 2: Convert to fraction form
    459,040.22/633,435.17 = 255,078.21/x
  3. Step 3: Cross multiply
    459,040.22x = 633,435.17 × 255,078.21
  4. Step 4: Simplify right side
    459,040.22x = 161,575,508,039.26
  5. Step 5: Solve for x
    x = 161,575,508,039.26/459,040.22
  6. Step 6: Final answer
    x = 351,985.52

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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.