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Finding the Fourth Proportional to 445,538.70, 614,786.76 and 254,564.46

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Solution

The fourth proportional to 445,538.70, 614,786.76 and 254,564.46 is: 351,266.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,538.70 : 614,786.76 = 254,564.46 : x
  2. Step 2: Convert to fraction form
    445,538.70/614,786.76 = 254,564.46/x
  3. Step 3: Cross multiply
    445,538.70x = 614,786.76 × 254,564.46
  4. Step 4: Simplify right side
    445,538.70x = 156,502,859,574.55
  5. Step 5: Solve for x
    x = 156,502,859,574.55/445,538.70
  6. Step 6: Final answer
    x = 351,266.59

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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.