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Finding the Fourth Proportional to 404,421.66, 558,103.95 and 223,133.67

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Solution

The fourth proportional to 404,421.66, 558,103.95 and 223,133.67 is: 307,925.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,421.66 : 558,103.95 = 223,133.67 : x
  2. Step 2: Convert to fraction form
    404,421.66/558,103.95 = 223,133.67/x
  3. Step 3: Cross multiply
    404,421.66x = 558,103.95 × 223,133.67
  4. Step 4: Simplify right side
    404,421.66x = 124,531,782,605.00
  5. Step 5: Solve for x
    x = 124,531,782,605.00/404,421.66
  6. Step 6: Final answer
    x = 307,925.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.