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Finding the Fourth Proportional to 674,705.96, 931,092.62 and 384,317.48

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Solution

The fourth proportional to 674,705.96, 931,092.62 and 384,317.48 is: 530,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,705.96 : 931,092.62 = 384,317.48 : x
  2. Step 2: Convert to fraction form
    674,705.96/931,092.62 = 384,317.48/x
  3. Step 3: Cross multiply
    674,705.96x = 931,092.62 × 384,317.48
  4. Step 4: Simplify right side
    674,705.96x = 357,835,169,365.00
  5. Step 5: Solve for x
    x = 357,835,169,365.00/674,705.96
  6. Step 6: Final answer
    x = 530,357.21

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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.