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Finding the Fourth Proportional to 655,754.68, 904,923.72 and 369,268.60

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Solution

The fourth proportional to 655,754.68, 904,923.72 and 369,268.60 is: 509,580.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,754.68 : 904,923.72 = 369,268.60 : x
  2. Step 2: Convert to fraction form
    655,754.68/904,923.72 = 369,268.60/x
  3. Step 3: Cross multiply
    655,754.68x = 904,923.72 × 369,268.60
  4. Step 4: Simplify right side
    655,754.68x = 334,159,915,191.19
  5. Step 5: Solve for x
    x = 334,159,915,191.19/655,754.68
  6. Step 6: Final answer
    x = 509,580.68

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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.