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Finding the Fourth Proportional to 529,435.86, 730,251.90 and 348,089.82

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Solution

The fourth proportional to 529,435.86, 730,251.90 and 348,089.82 is: 480,120.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,435.86 : 730,251.90 = 348,089.82 : x
  2. Step 2: Convert to fraction form
    529,435.86/730,251.90 = 348,089.82/x
  3. Step 3: Cross multiply
    529,435.86x = 730,251.90 × 348,089.82
  4. Step 4: Simplify right side
    529,435.86x = 254,193,252,425.66
  5. Step 5: Solve for x
    x = 254,193,252,425.66/529,435.86
  6. Step 6: Final answer
    x = 480,120.96

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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.