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Finding the Fourth Proportional to 448,866.50, 673,298.94 and 261,746.78

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Solution

The fourth proportional to 448,866.50, 673,298.94 and 261,746.78 is: 392,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,866.50 : 673,298.94 = 261,746.78 : x
  2. Step 2: Convert to fraction form
    448,866.50/673,298.94 = 261,746.78/x
  3. Step 3: Cross multiply
    448,866.50x = 673,298.94 × 261,746.78
  4. Step 4: Simplify right side
    448,866.50x = 176,233,829,522.41
  5. Step 5: Solve for x
    x = 176,233,829,522.41/448,866.50
  6. Step 6: Final answer
    x = 392,619.70

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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.