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Finding the Fourth Proportional to 438,554.25, 605,216.71 and 266,413.66

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Solution

The fourth proportional to 438,554.25, 605,216.71 and 266,413.66 is: 367,658.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,554.25 : 605,216.71 = 266,413.66 : x
  2. Step 2: Convert to fraction form
    438,554.25/605,216.71 = 266,413.66/x
  3. Step 3: Cross multiply
    438,554.25x = 605,216.71 × 266,413.66
  4. Step 4: Simplify right side
    438,554.25x = 161,237,997,624.23
  5. Step 5: Solve for x
    x = 161,237,997,624.23/438,554.25
  6. Step 6: Final answer
    x = 367,658.04

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1.5x scale

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.