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Finding the Fourth Proportional to 326,376.72, 450,284.40 and 213,265.08

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Solution

The fourth proportional to 326,376.72, 450,284.40 and 213,265.08 is: 294,230.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,376.72 : 450,284.40 = 213,265.08 : x
  2. Step 2: Convert to fraction form
    326,376.72/450,284.40 = 213,265.08/x
  3. Step 3: Cross multiply
    326,376.72x = 450,284.40 × 213,265.08
  4. Step 4: Simplify right side
    326,376.72x = 96,029,938,588.75
  5. Step 5: Solve for x
    x = 96,029,938,588.75/326,376.72
  6. Step 6: Final answer
    x = 294,230.36

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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.