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Finding the Fourth Proportional to 381,539.60, 572,309.40 and 224,075.60

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Solution

The fourth proportional to 381,539.60, 572,309.40 and 224,075.60 is: 336,113.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,539.60 : 572,309.40 = 224,075.60 : x
  2. Step 2: Convert to fraction form
    381,539.60/572,309.40 = 224,075.60/x
  3. Step 3: Cross multiply
    381,539.60x = 572,309.40 × 224,075.60
  4. Step 4: Simplify right side
    381,539.60x = 128,240,572,190.64
  5. Step 5: Solve for x
    x = 128,240,572,190.64/381,539.60
  6. Step 6: Final answer
    x = 336,113.40

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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.