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Finding the Fourth Proportional to 483,057.53, 723,779.93 and 212,783.00

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Solution

The fourth proportional to 483,057.53, 723,779.93 and 212,783.00 is: 318,819.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,057.53 : 723,779.93 = 212,783.00 : x
  2. Step 2: Convert to fraction form
    483,057.53/723,779.93 = 212,783.00/x
  3. Step 3: Cross multiply
    483,057.53x = 723,779.93 × 212,783.00
  4. Step 4: Simplify right side
    483,057.53x = 154,008,060,162.38
  5. Step 5: Solve for x
    x = 154,008,060,162.38/483,057.53
  6. Step 6: Final answer
    x = 318,819.30

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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.