Home / 612,917.58-919,178.52-223,368.54

Finding the Fourth Proportional to 612,917.58, 919,178.52 and 223,368.54

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Solution

The fourth proportional to 612,917.58, 919,178.52 and 223,368.54 is: 334,980.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,917.58 : 919,178.52 = 223,368.54 : x
  2. Step 2: Convert to fraction form
    612,917.58/919,178.52 = 223,368.54/x
  3. Step 3: Cross multiply
    612,917.58x = 919,178.52 × 223,368.54
  4. Step 4: Simplify right side
    612,917.58x = 205,315,564,011.76
  5. Step 5: Solve for x
    x = 205,315,564,011.76/612,917.58
  6. Step 6: Final answer
    x = 334,980.71

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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.