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Finding the Fourth Proportional to 346,704.70, 520,057.05 and 283,719.10

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Solution

The fourth proportional to 346,704.70, 520,057.05 and 283,719.10 is: 425,578.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,704.70 : 520,057.05 = 283,719.10 : x
  2. Step 2: Convert to fraction form
    346,704.70/520,057.05 = 283,719.10/x
  3. Step 3: Cross multiply
    346,704.70x = 520,057.05 × 283,719.10
  4. Step 4: Simplify right side
    346,704.70x = 147,550,118,174.66
  5. Step 5: Solve for x
    x = 147,550,118,174.66/346,704.70
  6. Step 6: Final answer
    x = 425,578.65

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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.