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Finding the Fourth Proportional to 352,692.20, 529,038.30 and 347,443.40

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Solution

The fourth proportional to 352,692.20, 529,038.30 and 347,443.40 is: 521,165.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,692.20 : 529,038.30 = 347,443.40 : x
  2. Step 2: Convert to fraction form
    352,692.20/529,038.30 = 347,443.40/x
  3. Step 3: Cross multiply
    352,692.20x = 529,038.30 × 347,443.40
  4. Step 4: Simplify right side
    352,692.20x = 183,810,865,682.22
  5. Step 5: Solve for x
    x = 183,810,865,682.22/352,692.20
  6. Step 6: Final answer
    x = 521,165.10

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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.