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Finding the Fourth Proportional to 572,236.80, 858,470.40 and 198,182.40

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Solution

The fourth proportional to 572,236.80, 858,470.40 and 198,182.40 is: 297,313.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,236.80 : 858,470.40 = 198,182.40 : x
  2. Step 2: Convert to fraction form
    572,236.80/858,470.40 = 198,182.40/x
  3. Step 3: Cross multiply
    572,236.80x = 858,470.40 × 198,182.40
  4. Step 4: Simplify right side
    572,236.80x = 170,133,724,200.96
  5. Step 5: Solve for x
    x = 170,133,724,200.96/572,236.80
  6. Step 6: Final answer
    x = 297,313.50

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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.