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Finding the Fourth Proportional to 483,124.59, 666,731.12 and 279,168.75

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Solution

The fourth proportional to 483,124.59, 666,731.12 and 279,168.75 is: 385,263.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,124.59 : 666,731.12 = 279,168.75 : x
  2. Step 2: Convert to fraction form
    483,124.59/666,731.12 = 279,168.75/x
  3. Step 3: Cross multiply
    483,124.59x = 666,731.12 × 279,168.75
  4. Step 4: Simplify right side
    483,124.59x = 186,130,491,960.66
  5. Step 5: Solve for x
    x = 186,130,491,960.66/483,124.59
  6. Step 6: Final answer
    x = 385,263.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.