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Finding the Fourth Proportional to 335,810.40, 503,715.60 and 272,824.80

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Solution

The fourth proportional to 335,810.40, 503,715.60 and 272,824.80 is: 409,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,810.40 : 503,715.60 = 272,824.80 : x
  2. Step 2: Convert to fraction form
    335,810.40/503,715.60 = 272,824.80/x
  3. Step 3: Cross multiply
    335,810.40x = 503,715.60 × 272,824.80
  4. Step 4: Simplify right side
    335,810.40x = 137,426,107,826.88
  5. Step 5: Solve for x
    x = 137,426,107,826.88/335,810.40
  6. Step 6: Final answer
    x = 409,237.20

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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.