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Finding the Fourth Proportional to 531,288.56, 797,057.45 and 211,459.79

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Solution

The fourth proportional to 531,288.56, 797,057.45 and 211,459.79 is: 317,239.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,288.56 : 797,057.45 = 211,459.79 : x
  2. Step 2: Convert to fraction form
    531,288.56/797,057.45 = 211,459.79/x
  3. Step 3: Cross multiply
    531,288.56x = 797,057.45 × 211,459.79
  4. Step 4: Simplify right side
    531,288.56x = 168,545,600,994.94
  5. Step 5: Solve for x
    x = 168,545,600,994.94/531,288.56
  6. Step 6: Final answer
    x = 317,239.28

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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.