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Finding the Fourth Proportional to 707,497.98, 976,297.89 and 401,580.60

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Solution

The fourth proportional to 707,497.98, 976,297.89 and 401,580.60 is: 554,153.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,497.98 : 976,297.89 = 401,580.60 : x
  2. Step 2: Convert to fraction form
    707,497.98/976,297.89 = 401,580.60/x
  3. Step 3: Cross multiply
    707,497.98x = 976,297.89 × 401,580.60
  4. Step 4: Simplify right side
    707,497.98x = 392,062,292,444.93
  5. Step 5: Solve for x
    x = 392,062,292,444.93/707,497.98
  6. Step 6: Final answer
    x = 554,153.23

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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.