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Finding the Fourth Proportional to 469,267.66, 648,123.97 and 318,102.22

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Solution

The fourth proportional to 469,267.66, 648,123.97 and 318,102.22 is: 439,343.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,267.66 : 648,123.97 = 318,102.22 : x
  2. Step 2: Convert to fraction form
    469,267.66/648,123.97 = 318,102.22/x
  3. Step 3: Cross multiply
    469,267.66x = 648,123.97 × 318,102.22
  4. Step 4: Simplify right side
    469,267.66x = 206,169,670,068.87
  5. Step 5: Solve for x
    x = 206,169,670,068.87/469,267.66
  6. Step 6: Final answer
    x = 439,343.45

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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.