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Finding the Fourth Proportional to 575,388.76, 863,332.03 and 308,837.88

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Solution

The fourth proportional to 575,388.76, 863,332.03 and 308,837.88 is: 463,390.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,388.76 : 863,332.03 = 308,837.88 : x
  2. Step 2: Convert to fraction form
    575,388.76/863,332.03 = 308,837.88/x
  3. Step 3: Cross multiply
    575,388.76x = 863,332.03 × 308,837.88
  4. Step 4: Simplify right side
    575,388.76x = 266,629,636,346.70
  5. Step 5: Solve for x
    x = 266,629,636,346.70/575,388.76
  6. Step 6: Final answer
    x = 463,390.42

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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.