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Finding the Fourth Proportional to 438,757.77, 605,485.76 and 247,783.47

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Solution

The fourth proportional to 438,757.77, 605,485.76 and 247,783.47 is: 341,941.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,757.77 : 605,485.76 = 247,783.47 : x
  2. Step 2: Convert to fraction form
    438,757.77/605,485.76 = 247,783.47/x
  3. Step 3: Cross multiply
    438,757.77x = 605,485.76 × 247,783.47
  4. Step 4: Simplify right side
    438,757.77x = 150,029,362,648.39
  5. Step 5: Solve for x
    x = 150,029,362,648.39/438,757.77
  6. Step 6: Final answer
    x = 341,941.21

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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.