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Finding the Fourth Proportional to 368,378.01, 508,356.59 and 207,233.01

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Solution

The fourth proportional to 368,378.01, 508,356.59 and 207,233.01 is: 285,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,378.01 : 508,356.59 = 207,233.01 : x
  2. Step 2: Convert to fraction form
    368,378.01/508,356.59 = 207,233.01/x
  3. Step 3: Cross multiply
    368,378.01x = 508,356.59 × 207,233.01
  4. Step 4: Simplify right side
    368,378.01x = 105,348,265,262.87
  5. Step 5: Solve for x
    x = 105,348,265,262.87/368,378.01
  6. Step 6: Final answer
    x = 285,978.70

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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.