Home / 280,008.83-419,844.36-111,555.16

Finding the Fourth Proportional to 280,008.83, 419,844.36 and 111,555.16

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Solution

The fourth proportional to 280,008.83, 419,844.36 and 111,555.16 is: 167,265.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,008.83 : 419,844.36 = 111,555.16 : x
  2. Step 2: Convert to fraction form
    280,008.83/419,844.36 = 111,555.16/x
  3. Step 3: Cross multiply
    280,008.83x = 419,844.36 × 111,555.16
  4. Step 4: Simplify right side
    280,008.83x = 46,835,804,123.62
  5. Step 5: Solve for x
    x = 46,835,804,123.62/280,008.83
  6. Step 6: Final answer
    x = 167,265.45

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1.5x scale

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.