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Finding the Fourth Proportional to 423,661.86, 584,484.39 and 270,660.42

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Solution

The fourth proportional to 423,661.86, 584,484.39 and 270,660.42 is: 373,403.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,661.86 : 584,484.39 = 270,660.42 : x
  2. Step 2: Convert to fraction form
    423,661.86/584,484.39 = 270,660.42/x
  3. Step 3: Cross multiply
    423,661.86x = 584,484.39 × 270,660.42
  4. Step 4: Simplify right side
    423,661.86x = 158,196,790,480.84
  5. Step 5: Solve for x
    x = 158,196,790,480.84/423,661.86
  6. Step 6: Final answer
    x = 373,403.43

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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.