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Finding the Fourth Proportional to 455,509.36, 628,592.16 and 251,556.22

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Solution

The fourth proportional to 455,509.36, 628,592.16 and 251,556.22 is: 347,141.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,509.36 : 628,592.16 = 251,556.22 : x
  2. Step 2: Convert to fraction form
    455,509.36/628,592.16 = 251,556.22/x
  3. Step 3: Cross multiply
    455,509.36x = 628,592.16 × 251,556.22
  4. Step 4: Simplify right side
    455,509.36x = 158,126,267,691.24
  5. Step 5: Solve for x
    x = 158,126,267,691.24/455,509.36
  6. Step 6: Final answer
    x = 347,141.64

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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.