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Finding the Fourth Proportional to 346,694.40, 520,041.60 and 283,708.80

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Solution

The fourth proportional to 346,694.40, 520,041.60 and 283,708.80 is: 425,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,694.40 : 520,041.60 = 283,708.80 : x
  2. Step 2: Convert to fraction form
    346,694.40/520,041.60 = 283,708.80/x
  3. Step 3: Cross multiply
    346,694.40x = 520,041.60 × 283,708.80
  4. Step 4: Simplify right side
    346,694.40x = 147,540,378,286.08
  5. Step 5: Solve for x
    x = 147,540,378,286.08/346,694.40
  6. Step 6: Final answer
    x = 425,563.20

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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.