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Finding the Fourth Proportional to 570,049.20, 854,539.20 and 215,301.60

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Solution

The fourth proportional to 570,049.20, 854,539.20 and 215,301.60 is: 322,750.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,049.20 : 854,539.20 = 215,301.60 : x
  2. Step 2: Convert to fraction form
    570,049.20/854,539.20 = 215,301.60/x
  3. Step 3: Cross multiply
    570,049.20x = 854,539.20 × 215,301.60
  4. Step 4: Simplify right side
    570,049.20x = 183,983,657,022.72
  5. Step 5: Solve for x
    x = 183,983,657,022.72/570,049.20
  6. Step 6: Final answer
    x = 322,750.49

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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.