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Finding the Fourth Proportional to 663,191.19, 994,689.63 and 326,141.25

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Solution

The fourth proportional to 663,191.19, 994,689.63 and 326,141.25 is: 489,164.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,191.19 : 994,689.63 = 326,141.25 : x
  2. Step 2: Convert to fraction form
    663,191.19/994,689.63 = 326,141.25/x
  3. Step 3: Cross multiply
    663,191.19x = 994,689.63 × 326,141.25
  4. Step 4: Simplify right side
    663,191.19x = 324,409,319,290.24
  5. Step 5: Solve for x
    x = 324,409,319,290.24/663,191.19
  6. Step 6: Final answer
    x = 489,164.10

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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.