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Finding the Fourth Proportional to 326,710.40, 490,065.60 and 160,822.40

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Solution

The fourth proportional to 326,710.40, 490,065.60 and 160,822.40 is: 241,233.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,710.40 : 490,065.60 = 160,822.40 : x
  2. Step 2: Convert to fraction form
    326,710.40/490,065.60 = 160,822.40/x
  3. Step 3: Cross multiply
    326,710.40x = 490,065.60 × 160,822.40
  4. Step 4: Simplify right side
    326,710.40x = 78,813,525,949.44
  5. Step 5: Solve for x
    x = 78,813,525,949.44/326,710.40
  6. Step 6: Final answer
    x = 241,233.60

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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.