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Finding the Fourth Proportional to 655,145.03, 904,099.74 and 368,665.38

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Solution

The fourth proportional to 655,145.03, 904,099.74 and 368,665.38 is: 508,758.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,145.03 : 904,099.74 = 368,665.38 : x
  2. Step 2: Convert to fraction form
    655,145.03/904,099.74 = 368,665.38/x
  3. Step 3: Cross multiply
    655,145.03x = 904,099.74 × 368,665.38
  4. Step 4: Simplify right side
    655,145.03x = 333,310,274,205.00
  5. Step 5: Solve for x
    x = 333,310,274,205.00/655,145.03
  6. Step 6: Final answer
    x = 508,758.00

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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.