Home / 618,814.12-928,357.26-198,132.52

Finding the Fourth Proportional to 618,814.12, 928,357.26 and 198,132.52

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Solution

The fourth proportional to 618,814.12, 928,357.26 and 198,132.52 is: 297,242.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,814.12 : 928,357.26 = 198,132.52 : x
  2. Step 2: Convert to fraction form
    618,814.12/928,357.26 = 198,132.52/x
  3. Step 3: Cross multiply
    618,814.12x = 928,357.26 × 198,132.52
  4. Step 4: Simplify right side
    618,814.12x = 183,937,763,384.10
  5. Step 5: Solve for x
    x = 183,937,763,384.10/618,814.12
  6. Step 6: Final answer
    x = 297,242.35

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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.