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Finding the Fourth Proportional to 368,619.04, 508,695.20 and 207,476.48

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Solution

The fourth proportional to 368,619.04, 508,695.20 and 207,476.48 is: 286,318.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,619.04 : 508,695.20 = 207,476.48 : x
  2. Step 2: Convert to fraction form
    368,619.04/508,695.20 = 207,476.48/x
  3. Step 3: Cross multiply
    368,619.04x = 508,695.20 × 207,476.48
  4. Step 4: Simplify right side
    368,619.04x = 105,542,289,488.90
  5. Step 5: Solve for x
    x = 105,542,289,488.90/368,619.04
  6. Step 6: Final answer
    x = 286,318.06

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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.