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Finding the Fourth Proportional to 445,640.22, 614,984.51 and 254,653.15

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Solution

The fourth proportional to 445,640.22, 614,984.51 and 254,653.15 is: 351,421.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,640.22 : 614,984.51 = 254,653.15 : x
  2. Step 2: Convert to fraction form
    445,640.22/614,984.51 = 254,653.15/x
  3. Step 3: Cross multiply
    445,640.22x = 614,984.51 × 254,653.15
  4. Step 4: Simplify right side
    445,640.22x = 156,607,742,672.71
  5. Step 5: Solve for x
    x = 156,607,742,672.71/445,640.22
  6. Step 6: Final answer
    x = 351,421.92

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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.