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Finding the Fourth Proportional to 366,818.40, 549,536.40 and 188,719.20

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Solution

The fourth proportional to 366,818.40, 549,536.40 and 188,719.20 is: 282,723.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,818.40 : 549,536.40 = 188,719.20 : x
  2. Step 2: Convert to fraction form
    366,818.40/549,536.40 = 188,719.20/x
  3. Step 3: Cross multiply
    366,818.40x = 549,536.40 × 188,719.20
  4. Step 4: Simplify right side
    366,818.40x = 103,708,069,778.88
  5. Step 5: Solve for x
    x = 103,708,069,778.88/366,818.40
  6. Step 6: Final answer
    x = 282,723.19

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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.