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Finding the Fourth Proportional to 326,713.48, 450,831 and 183,472.36

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Solution

The fourth proportional to 326,713.48, 450,831 and 183,472.36 is: 253,172.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,713.48 : 450,831 = 183,472.36 : x
  2. Step 2: Convert to fraction form
    326,713.48/450,831 = 183,472.36/x
  3. Step 3: Cross multiply
    326,713.48x = 450,831 × 183,472.36
  4. Step 4: Simplify right side
    326,713.48x = 82,715,027,531.16
  5. Step 5: Solve for x
    x = 82,715,027,531.16/326,713.48
  6. Step 6: Final answer
    x = 253,172.99

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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.