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Finding the Fourth Proportional to 368,165.30, 508,058.01 and 207,016.20

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Solution

The fourth proportional to 368,165.30, 508,058.01 and 207,016.20 is: 285,676.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,165.30 : 508,058.01 = 207,016.20 : x
  2. Step 2: Convert to fraction form
    368,165.30/508,058.01 = 207,016.20/x
  3. Step 3: Cross multiply
    368,165.30x = 508,058.01 × 207,016.20
  4. Step 4: Simplify right side
    368,165.30x = 105,176,238,609.76
  5. Step 5: Solve for x
    x = 105,176,238,609.76/368,165.30
  6. Step 6: Final answer
    x = 285,676.68

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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.