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Finding the Fourth Proportional to 615,824.90, 922,182.15 and 404,317.70

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Solution

The fourth proportional to 615,824.90, 922,182.15 and 404,317.70 is: 605,455.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,824.90 : 922,182.15 = 404,317.70 : x
  2. Step 2: Convert to fraction form
    615,824.90/922,182.15 = 404,317.70/x
  3. Step 3: Cross multiply
    615,824.90x = 922,182.15 × 404,317.70
  4. Step 4: Simplify right side
    615,824.90x = 372,854,565,869.06
  5. Step 5: Solve for x
    x = 372,854,565,869.06/615,824.90
  6. Step 6: Final answer
    x = 605,455.49

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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.