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Finding the Fourth Proportional to 688,567.90, 950,198.43 and 382,663.30

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Solution

The fourth proportional to 688,567.90, 950,198.43 and 382,663.30 is: 528,061.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,567.90 : 950,198.43 = 382,663.30 : x
  2. Step 2: Convert to fraction form
    688,567.90/950,198.43 = 382,663.30/x
  3. Step 3: Cross multiply
    688,567.90x = 950,198.43 × 382,663.30
  4. Step 4: Simplify right side
    688,567.90x = 363,606,066,878.62
  5. Step 5: Solve for x
    x = 363,606,066,878.62/688,567.90
  6. Step 6: Final answer
    x = 528,061.31

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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.