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Finding the Fourth Proportional to 424,457.06, 635,620.86 and 253,573.38

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Solution

The fourth proportional to 424,457.06, 635,620.86 and 253,573.38 is: 379,724.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,457.06 : 635,620.86 = 253,573.38 : x
  2. Step 2: Convert to fraction form
    424,457.06/635,620.86 = 253,573.38/x
  3. Step 3: Cross multiply
    424,457.06x = 635,620.86 × 253,573.38
  4. Step 4: Simplify right side
    424,457.06x = 161,176,529,868.71
  5. Step 5: Solve for x
    x = 161,176,529,868.71/424,457.06
  6. Step 6: Final answer
    x = 379,724.00

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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.