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Finding the Fourth Proportional to 647,797.34, 893,963.43 and 357,408.90

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Solution

The fourth proportional to 647,797.34, 893,963.43 and 357,408.90 is: 493,225.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,797.34 : 893,963.43 = 357,408.90 : x
  2. Step 2: Convert to fraction form
    647,797.34/893,963.43 = 357,408.90/x
  3. Step 3: Cross multiply
    647,797.34x = 893,963.43 × 357,408.90
  4. Step 4: Simplify right side
    647,797.34x = 319,510,486,156.53
  5. Step 5: Solve for x
    x = 319,510,486,156.53/647,797.34
  6. Step 6: Final answer
    x = 493,225.99

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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.