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Finding the Fourth Proportional to 547,536.08, 755,518.92 and 321,254.48

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Solution

The fourth proportional to 547,536.08, 755,518.92 and 321,254.48 is: 443,283.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,536.08 : 755,518.92 = 321,254.48 : x
  2. Step 2: Convert to fraction form
    547,536.08/755,518.92 = 321,254.48/x
  3. Step 3: Cross multiply
    547,536.08x = 755,518.92 × 321,254.48
  4. Step 4: Simplify right side
    547,536.08x = 242,713,837,774.76
  5. Step 5: Solve for x
    x = 242,713,837,774.76/547,536.08
  6. Step 6: Final answer
    x = 443,283.73

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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.