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Finding the Fourth Proportional to 368,382.38, 508,366.87 and 207,237.50

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Solution

The fourth proportional to 368,382.38, 508,366.87 and 207,237.50 is: 285,987.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,382.38 : 508,366.87 = 207,237.50 : x
  2. Step 2: Convert to fraction form
    368,382.38/508,366.87 = 207,237.50/x
  3. Step 3: Cross multiply
    368,382.38x = 508,366.87 × 207,237.50
  4. Step 4: Simplify right side
    368,382.38x = 105,352,679,221.63
  5. Step 5: Solve for x
    x = 105,352,679,221.63/368,382.38
  6. Step 6: Final answer
    x = 285,987.29

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1.5x scale

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.