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Finding the Fourth Proportional to 309,568.61, 426,626.21 and 241,477.71

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Solution

The fourth proportional to 309,568.61, 426,626.21 and 241,477.71 is: 332,788.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,568.61 : 426,626.21 = 241,477.71 : x
  2. Step 2: Convert to fraction form
    309,568.61/426,626.21 = 241,477.71/x
  3. Step 3: Cross multiply
    309,568.61x = 426,626.21 × 241,477.71
  4. Step 4: Simplify right side
    309,568.61x = 103,020,719,009.39
  5. Step 5: Solve for x
    x = 103,020,719,009.39/309,568.61
  6. Step 6: Final answer
    x = 332,788.01

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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.