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Finding the Fourth Proportional to 445,898.81, 668,686.82 and 189,748.46

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Solution

The fourth proportional to 445,898.81, 668,686.82 and 189,748.46 is: 284,554.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,898.81 : 668,686.82 = 189,748.46 : x
  2. Step 2: Convert to fraction form
    445,898.81/668,686.82 = 189,748.46/x
  3. Step 3: Cross multiply
    445,898.81x = 668,686.82 × 189,748.46
  4. Step 4: Simplify right side
    445,898.81x = 126,882,290,025.12
  5. Step 5: Solve for x
    x = 126,882,290,025.12/445,898.81
  6. Step 6: Final answer
    x = 284,554.00

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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.