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Finding the Fourth Proportional to 1,403,404.98, 1,936,696.14 and 791,555.82

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Solution

The fourth proportional to 1,403,404.98, 1,936,696.14 and 791,555.82 is: 1,092,345.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,404.98 : 1,936,696.14 = 791,555.82 : x
  2. Step 2: Convert to fraction form
    1,403,404.98/1,936,696.14 = 791,555.82/x
  3. Step 3: Cross multiply
    1,403,404.98x = 1,936,696.14 × 791,555.82
  4. Step 4: Simplify right side
    1,403,404.98x = 1,533,003,101,188.53
  5. Step 5: Solve for x
    x = 1,533,003,101,188.53/1,403,404.98
  6. Step 6: Final answer
    x = 1,092,345.49

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.