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Finding the Fourth Proportional to 553,620.46, 829,785.51 and 254,132.70

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Solution

The fourth proportional to 553,620.46, 829,785.51 and 254,132.70 is: 380,902.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,620.46 : 829,785.51 = 254,132.70 : x
  2. Step 2: Convert to fraction form
    553,620.46/829,785.51 = 254,132.70/x
  3. Step 3: Cross multiply
    553,620.46x = 829,785.51 × 254,132.70
  4. Step 4: Simplify right side
    553,620.46x = 210,875,632,077.18
  5. Step 5: Solve for x
    x = 210,875,632,077.18/553,620.46
  6. Step 6: Final answer
    x = 380,902.89

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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.