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Finding the Fourth Proportional to 295,340.80, 443,011.20 and 190,278.40

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Solution

The fourth proportional to 295,340.80, 443,011.20 and 190,278.40 is: 285,417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,340.80 : 443,011.20 = 190,278.40 : x
  2. Step 2: Convert to fraction form
    295,340.80/443,011.20 = 190,278.40/x
  3. Step 3: Cross multiply
    295,340.80x = 443,011.20 × 190,278.40
  4. Step 4: Simplify right side
    295,340.80x = 84,295,462,318.08
  5. Step 5: Solve for x
    x = 84,295,462,318.08/295,340.80
  6. Step 6: Final answer
    x = 285,417.60

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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.