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Finding the Fourth Proportional to 326,030.84, 489,047.94 and 148,413.63

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Solution

The fourth proportional to 326,030.84, 489,047.94 and 148,413.63 is: 222,621.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,030.84 : 489,047.94 = 148,413.63 : x
  2. Step 2: Convert to fraction form
    326,030.84/489,047.94 = 148,413.63/x
  3. Step 3: Cross multiply
    326,030.84x = 489,047.94 × 148,413.63
  4. Step 4: Simplify right side
    326,030.84x = 72,581,380,019.42
  5. Step 5: Solve for x
    x = 72,581,380,019.42/326,030.84
  6. Step 6: Final answer
    x = 222,621.21

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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.