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Finding the Fourth Proportional to 368,165.79, 508,058.64 and 207,016.70

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Solution

The fourth proportional to 368,165.79, 508,058.64 and 207,016.70 is: 285,677.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,165.79 : 508,058.64 = 207,016.70 : x
  2. Step 2: Convert to fraction form
    368,165.79/508,058.64 = 207,016.70/x
  3. Step 3: Cross multiply
    368,165.79x = 508,058.64 × 207,016.70
  4. Step 4: Simplify right side
    368,165.79x = 105,176,620,519.00
  5. Step 5: Solve for x
    x = 105,176,620,519.00/368,165.79
  6. Step 6: Final answer
    x = 285,677.33

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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.