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Finding the Fourth Proportional to 531,196.68, 796,728.70 and 215,350.12

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Solution

The fourth proportional to 531,196.68, 796,728.70 and 215,350.12 is: 322,998.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,196.68 : 796,728.70 = 215,350.12 : x
  2. Step 2: Convert to fraction form
    531,196.68/796,728.70 = 215,350.12/x
  3. Step 3: Cross multiply
    531,196.68x = 796,728.70 × 215,350.12
  4. Step 4: Simplify right side
    531,196.68x = 171,575,621,152.44
  5. Step 5: Solve for x
    x = 171,575,621,152.44/531,196.68
  6. Step 6: Final answer
    x = 322,998.29

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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.