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Finding the Fourth Proportional to 295,327.20, 442,990.80 and 202,015.20

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Solution

The fourth proportional to 295,327.20, 442,990.80 and 202,015.20 is: 303,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,327.20 : 442,990.80 = 202,015.20 : x
  2. Step 2: Convert to fraction form
    295,327.20/442,990.80 = 202,015.20/x
  3. Step 3: Cross multiply
    295,327.20x = 442,990.80 × 202,015.20
  4. Step 4: Simplify right side
    295,327.20x = 89,490,875,060.16
  5. Step 5: Solve for x
    x = 89,490,875,060.16/295,327.20
  6. Step 6: Final answer
    x = 303,022.80

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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.