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Finding the Fourth Proportional to 567,471.06, 783,111.78 and 312,816.78

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Solution

The fourth proportional to 567,471.06, 783,111.78 and 312,816.78 is: 431,688.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,471.06 : 783,111.78 = 312,816.78 : x
  2. Step 2: Convert to fraction form
    567,471.06/783,111.78 = 312,816.78/x
  3. Step 3: Cross multiply
    567,471.06x = 783,111.78 × 312,816.78
  4. Step 4: Simplify right side
    567,471.06x = 244,970,505,399.67
  5. Step 5: Solve for x
    x = 244,970,505,399.67/567,471.06
  6. Step 6: Final answer
    x = 431,688.10

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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.