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Finding the Fourth Proportional to 366,647.80, 549,534.30 and 329,031.40

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Solution

The fourth proportional to 366,647.80, 549,534.30 and 329,031.40 is: 493,154.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,647.80 : 549,534.30 = 329,031.40 : x
  2. Step 2: Convert to fraction form
    366,647.80/549,534.30 = 329,031.40/x
  3. Step 3: Cross multiply
    366,647.80x = 549,534.30 × 329,031.40
  4. Step 4: Simplify right side
    366,647.80x = 180,814,040,077.02
  5. Step 5: Solve for x
    x = 180,814,040,077.02/366,647.80
  6. Step 6: Final answer
    x = 493,154.58

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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.