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Finding the Fourth Proportional to 292,667.58, 438,969.78 and 198,501.84

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Solution

The fourth proportional to 292,667.58, 438,969.78 and 198,501.84 is: 297,731.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,667.58 : 438,969.78 = 198,501.84 : x
  2. Step 2: Convert to fraction form
    292,667.58/438,969.78 = 198,501.84/x
  3. Step 3: Cross multiply
    292,667.58x = 438,969.78 × 198,501.84
  4. Step 4: Simplify right side
    292,667.58x = 87,136,309,034.40
  5. Step 5: Solve for x
    x = 87,136,309,034.40/292,667.58
  6. Step 6: Final answer
    x = 297,731.33

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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.