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Finding the Fourth Proportional to 560,699.87, 773,662.32 and 318,968.33

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Solution

The fourth proportional to 560,699.87, 773,662.32 and 318,968.33 is: 440,117.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,699.87 : 773,662.32 = 318,968.33 : x
  2. Step 2: Convert to fraction form
    560,699.87/773,662.32 = 318,968.33/x
  3. Step 3: Cross multiply
    560,699.87x = 773,662.32 × 318,968.33
  4. Step 4: Simplify right side
    560,699.87x = 246,773,774,326.01
  5. Step 5: Solve for x
    x = 246,773,774,326.01/560,699.87
  6. Step 6: Final answer
    x = 440,117.41

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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.