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Finding the Fourth Proportional to 570,573.60, 855,536.40 and 215,599.20

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Solution

The fourth proportional to 570,573.60, 855,536.40 and 215,599.20 is: 323,276.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,573.60 : 855,536.40 = 215,599.20 : x
  2. Step 2: Convert to fraction form
    570,573.60/855,536.40 = 215,599.20/x
  3. Step 3: Cross multiply
    570,573.60x = 855,536.40 × 215,599.20
  4. Step 4: Simplify right side
    570,573.60x = 184,452,963,410.88
  5. Step 5: Solve for x
    x = 184,452,963,410.88/570,573.60
  6. Step 6: Final answer
    x = 323,276.37

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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.