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Finding the Fourth Proportional to 768,342.12, 1,152,217.80 and 530,965.14

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Solution

The fourth proportional to 768,342.12, 1,152,217.80 and 530,965.14 is: 796,243.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,342.12 : 1,152,217.80 = 530,965.14 : x
  2. Step 2: Convert to fraction form
    768,342.12/1,152,217.80 = 530,965.14/x
  3. Step 3: Cross multiply
    768,342.12x = 1,152,217.80 × 530,965.14
  4. Step 4: Simplify right side
    768,342.12x = 611,787,485,487.49
  5. Step 5: Solve for x
    x = 611,787,485,487.49/768,342.12
  6. Step 6: Final answer
    x = 796,243.59

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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.