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Finding the Fourth Proportional to 426,907.80, 589,110.03 and 235,909.80

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Solution

The fourth proportional to 426,907.80, 589,110.03 and 235,909.80 is: 325,542.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,907.80 : 589,110.03 = 235,909.80 : x
  2. Step 2: Convert to fraction form
    426,907.80/589,110.03 = 235,909.80/x
  3. Step 3: Cross multiply
    426,907.80x = 589,110.03 × 235,909.80
  4. Step 4: Simplify right side
    426,907.80x = 138,976,829,355.29
  5. Step 5: Solve for x
    x = 138,976,829,355.29/426,907.80
  6. Step 6: Final answer
    x = 325,542.96

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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.