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Finding the Fourth Proportional to 366,434.45, 549,633.45 and 188,959.40

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Solution

The fourth proportional to 366,434.45, 549,633.45 and 188,959.40 is: 283,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,434.45 : 549,633.45 = 188,959.40 : x
  2. Step 2: Convert to fraction form
    366,434.45/549,633.45 = 188,959.40/x
  3. Step 3: Cross multiply
    366,434.45x = 549,633.45 × 188,959.40
  4. Step 4: Simplify right side
    366,434.45x = 103,858,406,931.93
  5. Step 5: Solve for x
    x = 103,858,406,931.93/366,434.45
  6. Step 6: Final answer
    x = 283,429.70

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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.