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Finding the Fourth Proportional to 335,830.80, 470,785.20 and 335,830.80

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Solution

The fourth proportional to 335,830.80, 470,785.20 and 335,830.80 is: 470,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,830.80 : 470,785.20 = 335,830.80 : x
  2. Step 2: Convert to fraction form
    335,830.80/470,785.20 = 335,830.80/x
  3. Step 3: Cross multiply
    335,830.80x = 470,785.20 × 335,830.80
  4. Step 4: Simplify right side
    335,830.80x = 158,104,170,344.16
  5. Step 5: Solve for x
    x = 158,104,170,344.16/335,830.80
  6. Step 6: Final answer
    x = 470,785.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.