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Finding the Fourth Proportional to 605,915.40, 835,855.96 and 462,426.33

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Solution

The fourth proportional to 605,915.40, 835,855.96 and 462,426.33 is: 637,913.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,915.40 : 835,855.96 = 462,426.33 : x
  2. Step 2: Convert to fraction form
    605,915.40/835,855.96 = 462,426.33/x
  3. Step 3: Cross multiply
    605,915.40x = 835,855.96 × 462,426.33
  4. Step 4: Simplify right side
    605,915.40x = 386,521,803,991.43
  5. Step 5: Solve for x
    x = 386,521,803,991.43/605,915.40
  6. Step 6: Final answer
    x = 637,913.81

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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.