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Finding the Fourth Proportional to 571,089.30, 856,031.09 and 191,650.25

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Solution

The fourth proportional to 571,089.30, 856,031.09 and 191,650.25 is: 287,273.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,089.30 : 856,031.09 = 191,650.25 : x
  2. Step 2: Convert to fraction form
    571,089.30/856,031.09 = 191,650.25/x
  3. Step 3: Cross multiply
    571,089.30x = 856,031.09 × 191,650.25
  4. Step 4: Simplify right side
    571,089.30x = 164,058,567,167.87
  5. Step 5: Solve for x
    x = 164,058,567,167.87/571,089.30
  6. Step 6: Final answer
    x = 287,273.05

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1.5x scale

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.