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Finding the Fourth Proportional to 326,421.74, 450,505.99 and 183,189.64

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Solution

The fourth proportional to 326,421.74, 450,505.99 and 183,189.64 is: 252,826.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,421.74 : 450,505.99 = 183,189.64 : x
  2. Step 2: Convert to fraction form
    326,421.74/450,505.99 = 183,189.64/x
  3. Step 3: Cross multiply
    326,421.74x = 450,505.99 × 183,189.64
  4. Step 4: Simplify right side
    326,421.74x = 82,528,030,125.94
  5. Step 5: Solve for x
    x = 82,528,030,125.94/326,421.74
  6. Step 6: Final answer
    x = 252,826.39

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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.