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Finding the Fourth Proportional to 426,940.32, 588,796.22 and 354,228.08

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Solution

The fourth proportional to 426,940.32, 588,796.22 and 354,228.08 is: 488,518.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,940.32 : 588,796.22 = 354,228.08 : x
  2. Step 2: Convert to fraction form
    426,940.32/588,796.22 = 354,228.08/x
  3. Step 3: Cross multiply
    426,940.32x = 588,796.22 × 354,228.08
  4. Step 4: Simplify right side
    426,940.32x = 208,568,154,521.86
  5. Step 5: Solve for x
    x = 208,568,154,521.86/426,940.32
  6. Step 6: Final answer
    x = 488,518.29

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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.