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Finding the Fourth Proportional to 479,546.45, 661,779.59 and 264,686.69

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Solution

The fourth proportional to 479,546.45, 661,779.59 and 264,686.69 is: 365,270.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,546.45 : 661,779.59 = 264,686.69 : x
  2. Step 2: Convert to fraction form
    479,546.45/661,779.59 = 264,686.69/x
  3. Step 3: Cross multiply
    479,546.45x = 661,779.59 × 264,686.69
  4. Step 4: Simplify right side
    479,546.45x = 175,164,248,028.46
  5. Step 5: Solve for x
    x = 175,164,248,028.46/479,546.45
  6. Step 6: Final answer
    x = 365,270.66

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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.