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Finding the Fourth Proportional to 544,859.63, 817,281.24 and 245,128.55

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Solution

The fourth proportional to 544,859.63, 817,281.24 and 245,128.55 is: 367,689.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,859.63 : 817,281.24 = 245,128.55 : x
  2. Step 2: Convert to fraction form
    544,859.63/817,281.24 = 245,128.55/x
  3. Step 3: Cross multiply
    544,859.63x = 817,281.24 × 245,128.55
  4. Step 4: Simplify right side
    544,859.63x = 200,338,961,676.61
  5. Step 5: Solve for x
    x = 200,338,961,676.61/544,859.63
  6. Step 6: Final answer
    x = 367,689.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.