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Finding the Fourth Proportional to 531,364.53, 797,221.77 and 215,736.69

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Solution

The fourth proportional to 531,364.53, 797,221.77 and 215,736.69 is: 323,676.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,364.53 : 797,221.77 = 215,736.69 : x
  2. Step 2: Convert to fraction form
    531,364.53/797,221.77 = 215,736.69/x
  3. Step 3: Cross multiply
    531,364.53x = 797,221.77 × 215,736.69
  4. Step 4: Simplify right side
    531,364.53x = 171,989,985,855.74
  5. Step 5: Solve for x
    x = 171,989,985,855.74/531,364.53
  6. Step 6: Final answer
    x = 323,676.08

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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.