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Finding the Fourth Proportional to 326,439.72, 450,495 and 183,211.20

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Solution

The fourth proportional to 326,439.72, 450,495 and 183,211.20 is: 252,836.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,439.72 : 450,495 = 183,211.20 : x
  2. Step 2: Convert to fraction form
    326,439.72/450,495 = 183,211.20/x
  3. Step 3: Cross multiply
    326,439.72x = 450,495 × 183,211.20
  4. Step 4: Simplify right side
    326,439.72x = 82,535,729,544
  5. Step 5: Solve for x
    x = 82,535,729,544/326,439.72
  6. Step 6: Final answer
    x = 252,836.05

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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.