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Finding the Fourth Proportional to 427,086.48, 589,340.16 and 245,750.16

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Solution

The fourth proportional to 427,086.48, 589,340.16 and 245,750.16 is: 339,112.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,086.48 : 589,340.16 = 245,750.16 : x
  2. Step 2: Convert to fraction form
    427,086.48/589,340.16 = 245,750.16/x
  3. Step 3: Cross multiply
    427,086.48x = 589,340.16 × 245,750.16
  4. Step 4: Simplify right side
    427,086.48x = 144,830,438,614.43
  5. Step 5: Solve for x
    x = 144,830,438,614.43/427,086.48
  6. Step 6: Final answer
    x = 339,112.67

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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.