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Finding the Fourth Proportional to 362,219.10, 543,328.65 and 355,998.30

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Solution

The fourth proportional to 362,219.10, 543,328.65 and 355,998.30 is: 533,997.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,219.10 : 543,328.65 = 355,998.30 : x
  2. Step 2: Convert to fraction form
    362,219.10/543,328.65 = 355,998.30/x
  3. Step 3: Cross multiply
    362,219.10x = 543,328.65 × 355,998.30
  4. Step 4: Simplify right side
    362,219.10x = 193,424,075,741.30
  5. Step 5: Solve for x
    x = 193,424,075,741.30/362,219.10
  6. Step 6: Final answer
    x = 533,997.45

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Similar ratio
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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.