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Finding the Fourth Proportional to 610,699.48, 842,769.89 and 335,055.46

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Solution

The fourth proportional to 610,699.48, 842,769.89 and 335,055.46 is: 462,379.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,699.48 : 842,769.89 = 335,055.46 : x
  2. Step 2: Convert to fraction form
    610,699.48/842,769.89 = 335,055.46/x
  3. Step 3: Cross multiply
    610,699.48x = 842,769.89 × 335,055.46
  4. Step 4: Simplify right side
    610,699.48x = 282,374,653,168.10
  5. Step 5: Solve for x
    x = 282,374,653,168.10/610,699.48
  6. Step 6: Final answer
    x = 462,379.06

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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.