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Finding the Fourth Proportional to 358,476.60, 537,066.90 and 208,594.20

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Solution

The fourth proportional to 358,476.60, 537,066.90 and 208,594.20 is: 312,514.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,476.60 : 537,066.90 = 208,594.20 : x
  2. Step 2: Convert to fraction form
    358,476.60/537,066.90 = 208,594.20/x
  3. Step 3: Cross multiply
    358,476.60x = 537,066.90 × 208,594.20
  4. Step 4: Simplify right side
    358,476.60x = 112,029,040,351.98
  5. Step 5: Solve for x
    x = 112,029,040,351.98/358,476.60
  6. Step 6: Final answer
    x = 312,514.23

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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.