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Finding the Fourth Proportional to 336,438.72, 463,700.16 and 245,645.28

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Solution

The fourth proportional to 336,438.72, 463,700.16 and 245,645.28 is: 338,563.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,438.72 : 463,700.16 = 245,645.28 : x
  2. Step 2: Convert to fraction form
    336,438.72/463,700.16 = 245,645.28/x
  3. Step 3: Cross multiply
    336,438.72x = 463,700.16 × 245,645.28
  4. Step 4: Simplify right side
    336,438.72x = 113,905,755,639.25
  5. Step 5: Solve for x
    x = 113,905,755,639.25/336,438.72
  6. Step 6: Final answer
    x = 338,563.16

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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.