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Finding the Fourth Proportional to 538,961.90, 808,514.85 and 183,886.70

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Solution

The fourth proportional to 538,961.90, 808,514.85 and 183,886.70 is: 275,854.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,961.90 : 808,514.85 = 183,886.70 : x
  2. Step 2: Convert to fraction form
    538,961.90/808,514.85 = 183,886.70/x
  3. Step 3: Cross multiply
    538,961.90x = 808,514.85 × 183,886.70
  4. Step 4: Simplify right side
    538,961.90x = 148,675,127,667.50
  5. Step 5: Solve for x
    x = 148,675,127,667.50/538,961.90
  6. Step 6: Final answer
    x = 275,854.62

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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.