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Finding the Fourth Proportional to 370,978.44, 557,254.46 and 349,382.76

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Solution

The fourth proportional to 370,978.44, 557,254.46 and 349,382.76 is: 524,815.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,978.44 : 557,254.46 = 349,382.76 : x
  2. Step 2: Convert to fraction form
    370,978.44/557,254.46 = 349,382.76/x
  3. Step 3: Cross multiply
    370,978.44x = 557,254.46 × 349,382.76
  4. Step 4: Simplify right side
    370,978.44x = 194,695,101,257.11
  5. Step 5: Solve for x
    x = 194,695,101,257.11/370,978.44
  6. Step 6: Final answer
    x = 524,815.14

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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.