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Finding the Fourth Proportional to 438,598.67, 605,254.16 and 247,629.83

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Solution

The fourth proportional to 438,598.67, 605,254.16 and 247,629.83 is: 341,722.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,598.67 : 605,254.16 = 247,629.83 : x
  2. Step 2: Convert to fraction form
    438,598.67/605,254.16 = 247,629.83/x
  3. Step 3: Cross multiply
    438,598.67x = 605,254.16 × 247,629.83
  4. Step 4: Simplify right side
    438,598.67x = 149,878,983,509.44
  5. Step 5: Solve for x
    x = 149,878,983,509.44/438,598.67
  6. Step 6: Final answer
    x = 341,722.38

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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.