Home / 447,104.40-617,008.16-243,157.28

Finding the Fourth Proportional to 447,104.40, 617,008.16 and 243,157.28

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Solution

The fourth proportional to 447,104.40, 617,008.16 and 243,157.28 is: 335,559.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,104.40 : 617,008.16 = 243,157.28 : x
  2. Step 2: Convert to fraction form
    447,104.40/617,008.16 = 243,157.28/x
  3. Step 3: Cross multiply
    447,104.40x = 617,008.16 × 243,157.28
  4. Step 4: Simplify right side
    447,104.40x = 150,030,025,923.41
  5. Step 5: Solve for x
    x = 150,030,025,923.41/447,104.40
  6. Step 6: Final answer
    x = 335,559.27

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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.