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Finding the Fourth Proportional to 763,648.69, 1,053,773.53 and 441,379.66

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Solution

The fourth proportional to 763,648.69, 1,053,773.53 and 441,379.66 is: 609,068.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,648.69 : 1,053,773.53 = 441,379.66 : x
  2. Step 2: Convert to fraction form
    763,648.69/1,053,773.53 = 441,379.66/x
  3. Step 3: Cross multiply
    763,648.69x = 1,053,773.53 × 441,379.66
  4. Step 4: Simplify right side
    763,648.69x = 465,114,202,388.40
  5. Step 5: Solve for x
    x = 465,114,202,388.40/763,648.69
  6. Step 6: Final answer
    x = 609,068.29

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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.