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Finding the Fourth Proportional to 722,607.68, 1,083,681.76 and 675,434

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Solution

The fourth proportional to 722,607.68, 1,083,681.76 and 675,434 is: 1,012,936.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,607.68 : 1,083,681.76 = 675,434 : x
  2. Step 2: Convert to fraction form
    722,607.68/1,083,681.76 = 675,434/x
  3. Step 3: Cross multiply
    722,607.68x = 1,083,681.76 × 675,434
  4. Step 4: Simplify right side
    722,607.68x = 731,955,505,883.84
  5. Step 5: Solve for x
    x = 731,955,505,883.84/722,607.68
  6. Step 6: Final answer
    x = 1,012,936.24

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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.