Home / 685,426.14-945,900.63-383,619.42

Finding the Fourth Proportional to 685,426.14, 945,900.63 and 383,619.42

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Solution

The fourth proportional to 685,426.14, 945,900.63 and 383,619.42 is: 529,401.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,426.14 : 945,900.63 = 383,619.42 : x
  2. Step 2: Convert to fraction form
    685,426.14/945,900.63 = 383,619.42/x
  3. Step 3: Cross multiply
    685,426.14x = 945,900.63 × 383,619.42
  4. Step 4: Simplify right side
    685,426.14x = 362,865,851,058.24
  5. Step 5: Solve for x
    x = 362,865,851,058.24/685,426.14
  6. Step 6: Final answer
    x = 529,401.83

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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.