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Finding the Fourth Proportional to 615,767.81, 850,346.42 and 582,221.04

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Solution

The fourth proportional to 615,767.81, 850,346.42 and 582,221.04 is: 804,019.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,767.81 : 850,346.42 = 582,221.04 : x
  2. Step 2: Convert to fraction form
    615,767.81/850,346.42 = 582,221.04/x
  3. Step 3: Cross multiply
    615,767.81x = 850,346.42 × 582,221.04
  4. Step 4: Simplify right side
    615,767.81x = 495,089,574,101.57
  5. Step 5: Solve for x
    x = 495,089,574,101.57/615,767.81
  6. Step 6: Final answer
    x = 804,019.91

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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.