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Finding the Fourth Proportional to 643,397.93, 965,085.95 and 244,029.86

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Solution

The fourth proportional to 643,397.93, 965,085.95 and 244,029.86 is: 366,040.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,397.93 : 965,085.95 = 244,029.86 : x
  2. Step 2: Convert to fraction form
    643,397.93/965,085.95 = 244,029.86/x
  3. Step 3: Cross multiply
    643,397.93x = 965,085.95 × 244,029.86
  4. Step 4: Simplify right side
    643,397.93x = 235,509,785,051.11
  5. Step 5: Solve for x
    x = 235,509,785,051.11/643,397.93
  6. Step 6: Final answer
    x = 366,040.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.