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Finding the Fourth Proportional to 338,946.54, 508,413.41 and 82,783.23

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Solution

The fourth proportional to 338,946.54, 508,413.41 and 82,783.23 is: 124,173.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,946.54 : 508,413.41 = 82,783.23 : x
  2. Step 2: Convert to fraction form
    338,946.54/508,413.41 = 82,783.23/x
  3. Step 3: Cross multiply
    338,946.54x = 508,413.41 × 82,783.23
  4. Step 4: Simplify right side
    338,946.54x = 42,088,104,255.11
  5. Step 5: Solve for x
    x = 42,088,104,255.11/338,946.54
  6. Step 6: Final answer
    x = 124,173.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.