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Finding the Fourth Proportional to 426,707.72, 588,878.58 and 235,719.56

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Solution

The fourth proportional to 426,707.72, 588,878.58 and 235,719.56 is: 325,305.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,707.72 : 588,878.58 = 235,719.56 : x
  2. Step 2: Convert to fraction form
    426,707.72/588,878.58 = 235,719.56/x
  3. Step 3: Cross multiply
    426,707.72x = 588,878.58 × 235,719.56
  4. Step 4: Simplify right side
    426,707.72x = 138,810,199,771.03
  5. Step 5: Solve for x
    x = 138,810,199,771.03/426,707.72
  6. Step 6: Final answer
    x = 325,305.11

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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.