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Finding the Fourth Proportional to 531,148.62, 796,720.77 and 215,602.86

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Solution

The fourth proportional to 531,148.62, 796,720.77 and 215,602.86 is: 323,403.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,148.62 : 796,720.77 = 215,602.86 : x
  2. Step 2: Convert to fraction form
    531,148.62/796,720.77 = 215,602.86/x
  3. Step 3: Cross multiply
    531,148.62x = 796,720.77 × 215,602.86
  4. Step 4: Simplify right side
    531,148.62x = 171,775,276,633.40
  5. Step 5: Solve for x
    x = 171,775,276,633.40/531,148.62
  6. Step 6: Final answer
    x = 323,403.41

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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.