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Finding the Fourth Proportional to 451,225.68, 622,690.86 and 247,289.40

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Solution

The fourth proportional to 451,225.68, 622,690.86 and 247,289.40 is: 341,259.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,225.68 : 622,690.86 = 247,289.40 : x
  2. Step 2: Convert to fraction form
    451,225.68/622,690.86 = 247,289.40/x
  3. Step 3: Cross multiply
    451,225.68x = 622,690.86 × 247,289.40
  4. Step 4: Simplify right side
    451,225.68x = 153,984,849,154.88
  5. Step 5: Solve for x
    x = 153,984,849,154.88/451,225.68
  6. Step 6: Final answer
    x = 341,259.06

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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.