Home / 454,985.36-628,081.12-293,918.88

Finding the Fourth Proportional to 454,985.36, 628,081.12 and 293,918.88

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Solution

The fourth proportional to 454,985.36, 628,081.12 and 293,918.88 is: 405,738.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,985.36 : 628,081.12 = 293,918.88 : x
  2. Step 2: Convert to fraction form
    454,985.36/628,081.12 = 293,918.88/x
  3. Step 3: Cross multiply
    454,985.36x = 628,081.12 × 293,918.88
  4. Step 4: Simplify right side
    454,985.36x = 184,604,899,339.55
  5. Step 5: Solve for x
    x = 184,604,899,339.55/454,985.36
  6. Step 6: Final answer
    x = 405,738.11

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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.