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Finding the Fourth Proportional to 349,978.16, 524,179.38 and 245,264.60

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Solution

The fourth proportional to 349,978.16, 524,179.38 and 245,264.60 is: 367,344.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,978.16 : 524,179.38 = 245,264.60 : x
  2. Step 2: Convert to fraction form
    349,978.16/524,179.38 = 245,264.60/x
  3. Step 3: Cross multiply
    349,978.16x = 524,179.38 × 245,264.60
  4. Step 4: Simplify right side
    349,978.16x = 128,562,645,963.95
  5. Step 5: Solve for x
    x = 128,562,645,963.95/349,978.16
  6. Step 6: Final answer
    x = 367,344.77

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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.