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Finding the Fourth Proportional to 368,519.49, 508,550.94 and 207,374.45

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Solution

The fourth proportional to 368,519.49, 508,550.94 and 207,374.45 is: 286,173.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,519.49 : 508,550.94 = 207,374.45 : x
  2. Step 2: Convert to fraction form
    368,519.49/508,550.94 = 207,374.45/x
  3. Step 3: Cross multiply
    368,519.49x = 508,550.94 × 207,374.45
  4. Step 4: Simplify right side
    368,519.49x = 105,460,468,936.73
  5. Step 5: Solve for x
    x = 105,460,468,936.73/368,519.49
  6. Step 6: Final answer
    x = 286,173.38

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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.