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Finding the Fourth Proportional to 615,637.45, 923,220.91 and 295,697.98

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Solution

The fourth proportional to 615,637.45, 923,220.91 and 295,697.98 is: 443,433.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,637.45 : 923,220.91 = 295,697.98 : x
  2. Step 2: Convert to fraction form
    615,637.45/923,220.91 = 295,697.98/x
  3. Step 3: Cross multiply
    615,637.45x = 923,220.91 × 295,697.98
  4. Step 4: Simplify right side
    615,637.45x = 272,994,558,180.76
  5. Step 5: Solve for x
    x = 272,994,558,180.76/615,637.45
  6. Step 6: Final answer
    x = 443,433.97

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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.