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Finding the Fourth Proportional to 403,324.68, 604,982.90 and 103,804.10

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Solution

The fourth proportional to 403,324.68, 604,982.90 and 103,804.10 is: 155,705.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,324.68 : 604,982.90 = 103,804.10 : x
  2. Step 2: Convert to fraction form
    403,324.68/604,982.90 = 103,804.10/x
  3. Step 3: Cross multiply
    403,324.68x = 604,982.90 × 103,804.10
  4. Step 4: Simplify right side
    403,324.68x = 62,799,704,953.17
  5. Step 5: Solve for x
    x = 62,799,704,953.17/403,324.68
  6. Step 6: Final answer
    x = 155,705.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.