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Finding the Fourth Proportional to 619,963.60, 929,057.28 and 353,173.24

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Solution

The fourth proportional to 619,963.60, 929,057.28 and 353,173.24 is: 529,253.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,963.60 : 929,057.28 = 353,173.24 : x
  2. Step 2: Convert to fraction form
    619,963.60/929,057.28 = 353,173.24/x
  3. Step 3: Cross multiply
    619,963.60x = 929,057.28 × 353,173.24
  4. Step 4: Simplify right side
    619,963.60x = 328,118,169,723.19
  5. Step 5: Solve for x
    x = 328,118,169,723.19/619,963.60
  6. Step 6: Final answer
    x = 529,253.93

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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.