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Finding the Fourth Proportional to 438,598.17, 605,253.47 and 247,629.33

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Solution

The fourth proportional to 438,598.17, 605,253.47 and 247,629.33 is: 341,721.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,598.17 : 605,253.47 = 247,629.33 : x
  2. Step 2: Convert to fraction form
    438,598.17/605,253.47 = 247,629.33/x
  3. Step 3: Cross multiply
    438,598.17x = 605,253.47 × 247,629.33
  4. Step 4: Simplify right side
    438,598.17x = 149,878,510,018.13
  5. Step 5: Solve for x
    x = 149,878,510,018.13/438,598.17
  6. Step 6: Final answer
    x = 341,721.69

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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.