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Finding the Fourth Proportional to 567,397.50, 783,008.55 and 312,754.16

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Solution

The fourth proportional to 567,397.50, 783,008.55 and 312,754.16 is: 431,600.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,397.50 : 783,008.55 = 312,754.16 : x
  2. Step 2: Convert to fraction form
    567,397.50/783,008.55 = 312,754.16/x
  3. Step 3: Cross multiply
    567,397.50x = 783,008.55 × 312,754.16
  4. Step 4: Simplify right side
    567,397.50x = 244,889,177,413.03
  5. Step 5: Solve for x
    x = 244,889,177,413.03/567,397.50
  6. Step 6: Final answer
    x = 431,600.73

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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.