Home / 1,189,443.12-1,784,149.20-290,892.63

Finding the Fourth Proportional to 1,189,443.12, 1,784,149.20 and 290,892.63

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Solution

The fourth proportional to 1,189,443.12, 1,784,149.20 and 290,892.63 is: 436,335.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,443.12 : 1,784,149.20 = 290,892.63 : x
  2. Step 2: Convert to fraction form
    1,189,443.12/1,784,149.20 = 290,892.63/x
  3. Step 3: Cross multiply
    1,189,443.12x = 1,784,149.20 × 290,892.63
  4. Step 4: Simplify right side
    1,189,443.12x = 518,995,859,790.96
  5. Step 5: Solve for x
    x = 518,995,859,790.96/1,189,443.12
  6. Step 6: Final answer
    x = 436,335.17

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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.