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Finding the Fourth Proportional to 326,778.74, 450,996.95 and 183,538.78

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Solution

The fourth proportional to 326,778.74, 450,996.95 and 183,538.78 is: 253,307.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,778.74 : 450,996.95 = 183,538.78 : x
  2. Step 2: Convert to fraction form
    326,778.74/450,996.95 = 183,538.78/x
  3. Step 3: Cross multiply
    326,778.74x = 450,996.95 × 183,538.78
  4. Step 4: Simplify right side
    326,778.74x = 82,775,429,986.72
  5. Step 5: Solve for x
    x = 82,775,429,986.72/326,778.74
  6. Step 6: Final answer
    x = 253,307.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.