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Finding the Fourth Proportional to 604,130.10, 905,417.55 and 367,221.30

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Solution

The fourth proportional to 604,130.10, 905,417.55 and 367,221.30 is: 550,359.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,130.10 : 905,417.55 = 367,221.30 : x
  2. Step 2: Convert to fraction form
    604,130.10/905,417.55 = 367,221.30/x
  3. Step 3: Cross multiply
    604,130.10x = 905,417.55 × 367,221.30
  4. Step 4: Simplify right side
    604,130.10x = 332,488,609,753.82
  5. Step 5: Solve for x
    x = 332,488,609,753.82/604,130.10
  6. Step 6: Final answer
    x = 550,359.28

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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.