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Finding the Fourth Proportional to 531,528, 797,624.03 and 215,984.80

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Solution

The fourth proportional to 531,528, 797,624.03 and 215,984.80 is: 324,112.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,528 : 797,624.03 = 215,984.80 : x
  2. Step 2: Convert to fraction form
    531,528/797,624.03 = 215,984.80/x
  3. Step 3: Cross multiply
    531,528x = 797,624.03 × 215,984.80
  4. Step 4: Simplify right side
    531,528x = 172,274,666,594.74
  5. Step 5: Solve for x
    x = 172,274,666,594.74/531,528
  6. Step 6: Final answer
    x = 324,112.12

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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.