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Finding the Fourth Proportional to 576,775.60, 865,228.20 and 177,413.20

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Solution

The fourth proportional to 576,775.60, 865,228.20 and 177,413.20 is: 266,139.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,775.60 : 865,228.20 = 177,413.20 : x
  2. Step 2: Convert to fraction form
    576,775.60/865,228.20 = 177,413.20/x
  3. Step 3: Cross multiply
    576,775.60x = 865,228.20 × 177,413.20
  4. Step 4: Simplify right side
    576,775.60x = 153,502,903,692.24
  5. Step 5: Solve for x
    x = 153,502,903,692.24/576,775.60
  6. Step 6: Final answer
    x = 266,139.73

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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.