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Finding the Fourth Proportional to 427,978.46, 590,559.90 and 246,688.22

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Solution

The fourth proportional to 427,978.46, 590,559.90 and 246,688.22 is: 340,400.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,978.46 : 590,559.90 = 246,688.22 : x
  2. Step 2: Convert to fraction form
    427,978.46/590,559.90 = 246,688.22/x
  3. Step 3: Cross multiply
    427,978.46x = 590,559.90 × 246,688.22
  4. Step 4: Simplify right side
    427,978.46x = 145,684,170,534.38
  5. Step 5: Solve for x
    x = 145,684,170,534.38/427,978.46
  6. Step 6: Final answer
    x = 340,400.71

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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.