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Finding the Fourth Proportional to 324,492.72, 485,554.92 and 191,436.72

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Solution

The fourth proportional to 324,492.72, 485,554.92 and 191,436.72 is: 286,456.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,492.72 : 485,554.92 = 191,436.72 : x
  2. Step 2: Convert to fraction form
    324,492.72/485,554.92 = 191,436.72/x
  3. Step 3: Cross multiply
    324,492.72x = 485,554.92 × 191,436.72
  4. Step 4: Simplify right side
    324,492.72x = 92,953,041,264.66
  5. Step 5: Solve for x
    x = 92,953,041,264.66/324,492.72
  6. Step 6: Final answer
    x = 286,456.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.