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Finding the Fourth Proportional to 308,015.80, 462,023.70 and 175,305.40

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Solution

The fourth proportional to 308,015.80, 462,023.70 and 175,305.40 is: 262,958.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,015.80 : 462,023.70 = 175,305.40 : x
  2. Step 2: Convert to fraction form
    308,015.80/462,023.70 = 175,305.40/x
  3. Step 3: Cross multiply
    308,015.80x = 462,023.70 × 175,305.40
  4. Step 4: Simplify right side
    308,015.80x = 80,995,249,537.98
  5. Step 5: Solve for x
    x = 80,995,249,537.98/308,015.80
  6. Step 6: Final answer
    x = 262,958.10

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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.