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Finding the Fourth Proportional to 427,636.38, 590,130.68 and 246,347.76

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Solution

The fourth proportional to 427,636.38, 590,130.68 and 246,347.76 is: 339,955.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,636.38 : 590,130.68 = 246,347.76 : x
  2. Step 2: Convert to fraction form
    427,636.38/590,130.68 = 246,347.76/x
  3. Step 3: Cross multiply
    427,636.38x = 590,130.68 × 246,347.76
  4. Step 4: Simplify right side
    427,636.38x = 145,377,371,125.28
  5. Step 5: Solve for x
    x = 145,377,371,125.28/427,636.38
  6. Step 6: Final answer
    x = 339,955.57

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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.