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Finding the Fourth Proportional to 420,526.58, 580,240.05 and 241,644.02

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Solution

The fourth proportional to 420,526.58, 580,240.05 and 241,644.02 is: 333,418.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,526.58 : 580,240.05 = 241,644.02 : x
  2. Step 2: Convert to fraction form
    420,526.58/580,240.05 = 241,644.02/x
  3. Step 3: Cross multiply
    420,526.58x = 580,240.05 × 241,644.02
  4. Step 4: Simplify right side
    420,526.58x = 140,211,538,247.00
  5. Step 5: Solve for x
    x = 140,211,538,247.00/420,526.58
  6. Step 6: Final answer
    x = 333,418.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.