Home / 628,681.61-938,458.14-581,845.79

Finding the Fourth Proportional to 628,681.61, 938,458.14 and 581,845.79

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Solution

The fourth proportional to 628,681.61, 938,458.14 and 581,845.79 is: 868,544.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,681.61 : 938,458.14 = 581,845.79 : x
  2. Step 2: Convert to fraction form
    628,681.61/938,458.14 = 581,845.79/x
  3. Step 3: Cross multiply
    628,681.61x = 938,458.14 × 581,845.79
  4. Step 4: Simplify right side
    628,681.61x = 546,037,917,850.23
  5. Step 5: Solve for x
    x = 546,037,917,850.23/628,681.61
  6. Step 6: Final answer
    x = 868,544.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.