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Finding the Fourth Proportional to 468,413.92, 646,412.76 and 253,553.88

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Solution

The fourth proportional to 468,413.92, 646,412.76 and 253,553.88 is: 349,905.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,413.92 : 646,412.76 = 253,553.88 : x
  2. Step 2: Convert to fraction form
    468,413.92/646,412.76 = 253,553.88/x
  3. Step 3: Cross multiply
    468,413.92x = 646,412.76 × 253,553.88
  4. Step 4: Simplify right side
    468,413.92x = 163,900,463,379.51
  5. Step 5: Solve for x
    x = 163,900,463,379.51/468,413.92
  6. Step 6: Final answer
    x = 349,905.19

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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.