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Finding the Fourth Proportional to 610,561.60, 915,928.80 and 189,793.60

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Solution

The fourth proportional to 610,561.60, 915,928.80 and 189,793.60 is: 284,717.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,561.60 : 915,928.80 = 189,793.60 : x
  2. Step 2: Convert to fraction form
    610,561.60/915,928.80 = 189,793.60/x
  3. Step 3: Cross multiply
    610,561.60x = 915,928.80 × 189,793.60
  4. Step 4: Simplify right side
    610,561.60x = 173,837,424,295.68
  5. Step 5: Solve for x
    x = 173,837,424,295.68/610,561.60
  6. Step 6: Final answer
    x = 284,717.26

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1.5x scale

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.