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Finding the Fourth Proportional to 576,890.50, 865,417.74 and 177,564.56

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Solution

The fourth proportional to 576,890.50, 865,417.74 and 177,564.56 is: 266,372.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,890.50 : 865,417.74 = 177,564.56 : x
  2. Step 2: Convert to fraction form
    576,890.50/865,417.74 = 177,564.56/x
  3. Step 3: Cross multiply
    576,890.50x = 865,417.74 × 177,564.56
  4. Step 4: Simplify right side
    576,890.50x = 153,667,520,219.29
  5. Step 5: Solve for x
    x = 153,667,520,219.29/576,890.50
  6. Step 6: Final answer
    x = 266,372.08

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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.