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Finding the Fourth Proportional to 570,383.40, 855,530.55 and 149,648.34

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Solution

The fourth proportional to 570,383.40, 855,530.55 and 149,648.34 is: 224,460.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,383.40 : 855,530.55 = 149,648.34 : x
  2. Step 2: Convert to fraction form
    570,383.40/855,530.55 = 149,648.34/x
  3. Step 3: Cross multiply
    570,383.40x = 855,530.55 × 149,648.34
  4. Step 4: Simplify right side
    570,383.40x = 128,028,726,626.79
  5. Step 5: Solve for x
    x = 128,028,726,626.79/570,383.40
  6. Step 6: Final answer
    x = 224,460.82

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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.