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Finding the Fourth Proportional to 426,898.98, 589,070.42 and 235,900.98

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Solution

The fourth proportional to 426,898.98, 589,070.42 and 235,900.98 is: 325,515.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,898.98 : 589,070.42 = 235,900.98 : x
  2. Step 2: Convert to fraction form
    426,898.98/589,070.42 = 235,900.98/x
  3. Step 3: Cross multiply
    426,898.98x = 589,070.42 × 235,900.98
  4. Step 4: Simplify right side
    426,898.98x = 138,962,289,367.01
  5. Step 5: Solve for x
    x = 138,962,289,367.01/426,898.98
  6. Step 6: Final answer
    x = 325,515.63

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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.