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Finding the Fourth Proportional to 404,423.16, 558,106.02 and 223,135.17

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Solution

The fourth proportional to 404,423.16, 558,106.02 and 223,135.17 is: 307,927.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,423.16 : 558,106.02 = 223,135.17 : x
  2. Step 2: Convert to fraction form
    404,423.16/558,106.02 = 223,135.17/x
  3. Step 3: Cross multiply
    404,423.16x = 558,106.02 × 223,135.17
  4. Step 4: Simplify right side
    404,423.16x = 124,533,081,650.72
  5. Step 5: Solve for x
    x = 124,533,081,650.72/404,423.16
  6. Step 6: Final answer
    x = 307,927.67

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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.