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Finding the Fourth Proportional to 403,429.67, 604,937.95 and 225,889.01

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Solution

The fourth proportional to 403,429.67, 604,937.95 and 225,889.01 is: 338,717.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,429.67 : 604,937.95 = 225,889.01 : x
  2. Step 2: Convert to fraction form
    403,429.67/604,937.95 = 225,889.01/x
  3. Step 3: Cross multiply
    403,429.67x = 604,937.95 × 225,889.01
  4. Step 4: Simplify right side
    403,429.67x = 136,648,834,636.93
  5. Step 5: Solve for x
    x = 136,648,834,636.93/403,429.67
  6. Step 6: Final answer
    x = 338,717.86

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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.