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Finding the Fourth Proportional to 553,599.84, 764,156.43 and 344,211.60

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Solution

The fourth proportional to 553,599.84, 764,156.43 and 344,211.60 is: 475,129.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,599.84 : 764,156.43 = 344,211.60 : x
  2. Step 2: Convert to fraction form
    553,599.84/764,156.43 = 344,211.60/x
  3. Step 3: Cross multiply
    553,599.84x = 764,156.43 × 344,211.60
  4. Step 4: Simplify right side
    553,599.84x = 263,031,507,420.59
  5. Step 5: Solve for x
    x = 263,031,507,420.59/553,599.84
  6. Step 6: Final answer
    x = 475,129.31

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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.