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Finding the Fourth Proportional to 655,517.51, 904,631.07 and 369,047.84

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Solution

The fourth proportional to 655,517.51, 904,631.07 and 369,047.84 is: 509,295.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,517.51 : 904,631.07 = 369,047.84 : x
  2. Step 2: Convert to fraction form
    655,517.51/904,631.07 = 369,047.84/x
  3. Step 3: Cross multiply
    655,517.51x = 904,631.07 × 369,047.84
  4. Step 4: Simplify right side
    655,517.51x = 333,852,140,535.15
  5. Step 5: Solve for x
    x = 333,852,140,535.15/655,517.51
  6. Step 6: Final answer
    x = 509,295.54

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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.