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Finding the Fourth Proportional to 576,673.50, 865,033.80 and 197,854.72

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Solution

The fourth proportional to 576,673.50, 865,033.80 and 197,854.72 is: 296,790.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,673.50 : 865,033.80 = 197,854.72 : x
  2. Step 2: Convert to fraction form
    576,673.50/865,033.80 = 197,854.72/x
  3. Step 3: Cross multiply
    576,673.50x = 865,033.80 × 197,854.72
  4. Step 4: Simplify right side
    576,673.50x = 171,151,020,289.54
  5. Step 5: Solve for x
    x = 171,151,020,289.54/576,673.50
  6. Step 6: Final answer
    x = 296,790.16

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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.