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Finding the Fourth Proportional to 529,840.40, 795,635.40 and 353,130.80

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Solution

The fourth proportional to 529,840.40, 795,635.40 and 353,130.80 is: 530,279.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,840.40 : 795,635.40 = 353,130.80 : x
  2. Step 2: Convert to fraction form
    529,840.40/795,635.40 = 353,130.80/x
  3. Step 3: Cross multiply
    529,840.40x = 795,635.40 × 353,130.80
  4. Step 4: Simplify right side
    529,840.40x = 280,963,365,310.32
  5. Step 5: Solve for x
    x = 280,963,365,310.32/529,840.40
  6. Step 6: Final answer
    x = 530,279.24

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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.