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Finding the Fourth Proportional to 563,969.88, 843,978.06 and 404,221.95

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Solution

The fourth proportional to 563,969.88, 843,978.06 and 404,221.95 is: 604,916.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,969.88 : 843,978.06 = 404,221.95 : x
  2. Step 2: Convert to fraction form
    563,969.88/843,978.06 = 404,221.95/x
  3. Step 3: Cross multiply
    563,969.88x = 843,978.06 × 404,221.95
  4. Step 4: Simplify right side
    563,969.88x = 341,154,457,170.42
  5. Step 5: Solve for x
    x = 341,154,457,170.42/563,969.88
  6. Step 6: Final answer
    x = 604,916.09

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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.