Home / 289,872.08-400,080.84-188,023.76

Finding the Fourth Proportional to 289,872.08, 400,080.84 and 188,023.76

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Solution

The fourth proportional to 289,872.08, 400,080.84 and 188,023.76 is: 259,510.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,872.08 : 400,080.84 = 188,023.76 : x
  2. Step 2: Convert to fraction form
    289,872.08/400,080.84 = 188,023.76/x
  3. Step 3: Cross multiply
    289,872.08x = 400,080.84 × 188,023.76
  4. Step 4: Simplify right side
    289,872.08x = 75,224,703,840.76
  5. Step 5: Solve for x
    x = 75,224,703,840.76/289,872.08
  6. Step 6: Final answer
    x = 259,510.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.