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Finding the Fourth Proportional to 568,055.06, 783,918.54 and 313,413.74

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Solution

The fourth proportional to 568,055.06, 783,918.54 and 313,413.74 is: 432,512.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,055.06 : 783,918.54 = 313,413.74 : x
  2. Step 2: Convert to fraction form
    568,055.06/783,918.54 = 313,413.74/x
  3. Step 3: Cross multiply
    568,055.06x = 783,918.54 × 313,413.74
  4. Step 4: Simplify right side
    568,055.06x = 245,690,841,476.74
  5. Step 5: Solve for x
    x = 245,690,841,476.74/568,055.06
  6. Step 6: Final answer
    x = 432,512.37

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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.