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Finding the Fourth Proportional to 469,885.15, 648,434.57 and 265,974.74

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Solution

The fourth proportional to 469,885.15, 648,434.57 and 265,974.74 is: 367,041.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,885.15 : 648,434.57 = 265,974.74 : x
  2. Step 2: Convert to fraction form
    469,885.15/648,434.57 = 265,974.74/x
  3. Step 3: Cross multiply
    469,885.15x = 648,434.57 × 265,974.74
  4. Step 4: Simplify right side
    469,885.15x = 172,467,214,022.35
  5. Step 5: Solve for x
    x = 172,467,214,022.35/469,885.15
  6. Step 6: Final answer
    x = 367,041.21

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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.