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Finding the Fourth Proportional to 479,275.74, 661,395.96 and 264,417.54

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Solution

The fourth proportional to 479,275.74, 661,395.96 and 264,417.54 is: 364,893.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,275.74 : 661,395.96 = 264,417.54 : x
  2. Step 2: Convert to fraction form
    479,275.74/661,395.96 = 264,417.54/x
  3. Step 3: Cross multiply
    479,275.74x = 661,395.96 × 264,417.54
  4. Step 4: Simplify right side
    479,275.74x = 174,884,692,709.14
  5. Step 5: Solve for x
    x = 174,884,692,709.14/479,275.74
  6. Step 6: Final answer
    x = 364,893.69

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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.