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Finding the Fourth Proportional to 529,664.40, 793,184.40 and 339,832.80

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Solution

The fourth proportional to 529,664.40, 793,184.40 and 339,832.80 is: 508,907.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,664.40 : 793,184.40 = 339,832.80 : x
  2. Step 2: Convert to fraction form
    529,664.40/793,184.40 = 339,832.80/x
  3. Step 3: Cross multiply
    529,664.40x = 793,184.40 × 339,832.80
  4. Step 4: Simplify right side
    529,664.40x = 269,550,075,568.32
  5. Step 5: Solve for x
    x = 269,550,075,568.32/529,664.40
  6. Step 6: Final answer
    x = 508,907.29

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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.