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Finding the Fourth Proportional to 570,048.20, 854,537.70 and 215,300.60

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Solution

The fourth proportional to 570,048.20, 854,537.70 and 215,300.60 is: 322,748.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,048.20 : 854,537.70 = 215,300.60 : x
  2. Step 2: Convert to fraction form
    570,048.20/854,537.70 = 215,300.60/x
  3. Step 3: Cross multiply
    570,048.20x = 854,537.70 × 215,300.60
  4. Step 4: Simplify right side
    570,048.20x = 183,982,479,532.62
  5. Step 5: Solve for x
    x = 183,982,479,532.62/570,048.20
  6. Step 6: Final answer
    x = 322,748.99

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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.