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Finding the Fourth Proportional to 655,142.19, 904,022.94 and 368,760.75

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Solution

The fourth proportional to 655,142.19, 904,022.94 and 368,760.75 is: 508,848.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,142.19 : 904,022.94 = 368,760.75 : x
  2. Step 2: Convert to fraction form
    655,142.19/904,022.94 = 368,760.75/x
  3. Step 3: Cross multiply
    655,142.19x = 904,022.94 × 368,760.75
  4. Step 4: Simplify right side
    655,142.19x = 333,368,177,371.61
  5. Step 5: Solve for x
    x = 333,368,177,371.61/655,142.19
  6. Step 6: Final answer
    x = 508,848.59

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1.5x scale

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.