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Finding the Fourth Proportional to 326,722.80, 456,478.80 and 326,722.80

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Solution

The fourth proportional to 326,722.80, 456,478.80 and 326,722.80 is: 456,478.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,722.80 : 456,478.80 = 326,722.80 : x
  2. Step 2: Convert to fraction form
    326,722.80/456,478.80 = 326,722.80/x
  3. Step 3: Cross multiply
    326,722.80x = 456,478.80 × 326,722.80
  4. Step 4: Simplify right side
    326,722.80x = 149,142,031,676.64
  5. Step 5: Solve for x
    x = 149,142,031,676.64/326,722.80
  6. Step 6: Final answer
    x = 456,478.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.