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Finding the Fourth Proportional to 531,363.53, 797,220.27 and 215,735.69

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Solution

The fourth proportional to 531,363.53, 797,220.27 and 215,735.69 is: 323,674.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,363.53 : 797,220.27 = 215,735.69 : x
  2. Step 2: Convert to fraction form
    531,363.53/797,220.27 = 215,735.69/x
  3. Step 3: Cross multiply
    531,363.53x = 797,220.27 × 215,735.69
  4. Step 4: Simplify right side
    531,363.53x = 171,988,865,030.44
  5. Step 5: Solve for x
    x = 171,988,865,030.44/531,363.53
  6. Step 6: Final answer
    x = 323,674.58

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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.