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Finding the Fourth Proportional to 468,273.47, 646,218.99 and 253,413.48

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Solution

The fourth proportional to 468,273.47, 646,218.99 and 253,413.48 is: 349,711.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,273.47 : 646,218.99 = 253,413.48 : x
  2. Step 2: Convert to fraction form
    468,273.47/646,218.99 = 253,413.48/x
  3. Step 3: Cross multiply
    468,273.47x = 646,218.99 × 253,413.48
  4. Step 4: Simplify right side
    468,273.47x = 163,760,603,097.99
  5. Step 5: Solve for x
    x = 163,760,603,097.99/468,273.47
  6. Step 6: Final answer
    x = 349,711.47

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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.