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Finding the Fourth Proportional to 531,649.11, 733,732.67 and 325,038.74

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Solution

The fourth proportional to 531,649.11, 733,732.67 and 325,038.74 is: 448,588.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,649.11 : 733,732.67 = 325,038.74 : x
  2. Step 2: Convert to fraction form
    531,649.11/733,732.67 = 325,038.74/x
  3. Step 3: Cross multiply
    531,649.11x = 733,732.67 × 325,038.74
  4. Step 4: Simplify right side
    531,649.11x = 238,491,537,259.78
  5. Step 5: Solve for x
    x = 238,491,537,259.78/531,649.11
  6. Step 6: Final answer
    x = 448,588.24

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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.