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Finding the Fourth Proportional to 362,417.20, 543,625.80 and 309,929.20

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Solution

The fourth proportional to 362,417.20, 543,625.80 and 309,929.20 is: 464,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,417.20 : 543,625.80 = 309,929.20 : x
  2. Step 2: Convert to fraction form
    362,417.20/543,625.80 = 309,929.20/x
  3. Step 3: Cross multiply
    362,417.20x = 543,625.80 × 309,929.20
  4. Step 4: Simplify right side
    362,417.20x = 168,485,509,293.36
  5. Step 5: Solve for x
    x = 168,485,509,293.36/362,417.20
  6. Step 6: Final answer
    x = 464,893.80

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1.5x scale

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.