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Finding the Fourth Proportional to 424,447.48, 585,820.74 and 243,280.84

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Solution

The fourth proportional to 424,447.48, 585,820.74 and 243,280.84 is: 335,775.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,447.48 : 585,820.74 = 243,280.84 : x
  2. Step 2: Convert to fraction form
    424,447.48/585,820.74 = 243,280.84/x
  3. Step 3: Cross multiply
    424,447.48x = 585,820.74 × 243,280.84
  4. Step 4: Simplify right side
    424,447.48x = 142,518,961,716.62
  5. Step 5: Solve for x
    x = 142,518,961,716.62/424,447.48
  6. Step 6: Final answer
    x = 335,775.26

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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.