Home / 456,890.36-685,358.22-119,931.98

Finding the Fourth Proportional to 456,890.36, 685,358.22 and 119,931.98

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Solution

The fourth proportional to 456,890.36, 685,358.22 and 119,931.98 is: 179,903.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,890.36 : 685,358.22 = 119,931.98 : x
  2. Step 2: Convert to fraction form
    456,890.36/685,358.22 = 119,931.98/x
  3. Step 3: Cross multiply
    456,890.36x = 685,358.22 × 119,931.98
  4. Step 4: Simplify right side
    456,890.36x = 82,196,364,907.08
  5. Step 5: Solve for x
    x = 82,196,364,907.08/456,890.36
  6. Step 6: Final answer
    x = 179,903.92

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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.