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Finding the Fourth Proportional to 427,909.71, 590,533.85 and 236,923.10

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Solution

The fourth proportional to 427,909.71, 590,533.85 and 236,923.10 is: 326,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,909.71 : 590,533.85 = 236,923.10 : x
  2. Step 2: Convert to fraction form
    427,909.71/590,533.85 = 236,923.10/x
  3. Step 3: Cross multiply
    427,909.71x = 590,533.85 × 236,923.10
  4. Step 4: Simplify right side
    427,909.71x = 139,911,112,245.13
  5. Step 5: Solve for x
    x = 139,911,112,245.13/427,909.71
  6. Step 6: Final answer
    x = 326,964.10

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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.