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Finding the Fourth Proportional to 388,677.44, 581,699.34 and 239,012.52

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Solution

The fourth proportional to 388,677.44, 581,699.34 and 239,012.52 is: 357,709.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,677.44 : 581,699.34 = 239,012.52 : x
  2. Step 2: Convert to fraction form
    388,677.44/581,699.34 = 239,012.52/x
  3. Step 3: Cross multiply
    388,677.44x = 581,699.34 × 239,012.52
  4. Step 4: Simplify right side
    388,677.44x = 139,033,425,135.74
  5. Step 5: Solve for x
    x = 139,033,425,135.74/388,677.44
  6. Step 6: Final answer
    x = 357,709.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.