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Finding the Fourth Proportional to 607,296.69, 838,419.26 and 403,623.81

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Solution

The fourth proportional to 607,296.69, 838,419.26 and 403,623.81 is: 557,233.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,296.69 : 838,419.26 = 403,623.81 : x
  2. Step 2: Convert to fraction form
    607,296.69/838,419.26 = 403,623.81/x
  3. Step 3: Cross multiply
    607,296.69x = 838,419.26 × 403,623.81
  4. Step 4: Simplify right side
    607,296.69x = 338,405,974,080.46
  5. Step 5: Solve for x
    x = 338,405,974,080.46/607,296.69
  6. Step 6: Final answer
    x = 557,233.36

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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.