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Finding the Fourth Proportional to 268,333.80, 402,500.70 and 173,855.40

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Solution

The fourth proportional to 268,333.80, 402,500.70 and 173,855.40 is: 260,783.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,333.80 : 402,500.70 = 173,855.40 : x
  2. Step 2: Convert to fraction form
    268,333.80/402,500.70 = 173,855.40/x
  3. Step 3: Cross multiply
    268,333.80x = 402,500.70 × 173,855.40
  4. Step 4: Simplify right side
    268,333.80x = 69,976,920,198.78
  5. Step 5: Solve for x
    x = 69,976,920,198.78/268,333.80
  6. Step 6: Final answer
    x = 260,783.10

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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.