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Finding the Fourth Proportional to 591,206.60, 886,591.20 and 191,860.40

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Solution

The fourth proportional to 591,206.60, 886,591.20 and 191,860.40 is: 287,719.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,206.60 : 886,591.20 = 191,860.40 : x
  2. Step 2: Convert to fraction form
    591,206.60/886,591.20 = 191,860.40/x
  3. Step 3: Cross multiply
    591,206.60x = 886,591.20 × 191,860.40
  4. Step 4: Simplify right side
    591,206.60x = 170,101,742,268.48
  5. Step 5: Solve for x
    x = 170,101,742,268.48/591,206.60
  6. Step 6: Final answer
    x = 287,719.63

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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.