Home / 1,119,783.28-1,678,680.36-436,512.64

Finding the Fourth Proportional to 1,119,783.28, 1,678,680.36 and 436,512.64

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Solution

The fourth proportional to 1,119,783.28, 1,678,680.36 and 436,512.64 is: 654,381.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,783.28 : 1,678,680.36 = 436,512.64 : x
  2. Step 2: Convert to fraction form
    1,119,783.28/1,678,680.36 = 436,512.64/x
  3. Step 3: Cross multiply
    1,119,783.28x = 1,678,680.36 × 436,512.64
  4. Step 4: Simplify right side
    1,119,783.28x = 732,765,195,659.75
  5. Step 5: Solve for x
    x = 732,765,195,659.75/1,119,783.28
  6. Step 6: Final answer
    x = 654,381.26

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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.