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Finding the Fourth Proportional to 479,506.67, 661,715.94 and 264,646.73

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Solution

The fourth proportional to 479,506.67, 661,715.94 and 264,646.73 is: 365,210.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,506.67 : 661,715.94 = 264,646.73 : x
  2. Step 2: Convert to fraction form
    479,506.67/661,715.94 = 264,646.73/x
  3. Step 3: Cross multiply
    479,506.67x = 661,715.94 × 264,646.73
  4. Step 4: Simplify right side
    479,506.67x = 175,120,961,364.17
  5. Step 5: Solve for x
    x = 175,120,961,364.17/479,506.67
  6. Step 6: Final answer
    x = 365,210.69

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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.