Home / 816,864.89-1,225,413.97-255,943.13

Finding the Fourth Proportional to 816,864.89, 1,225,413.97 and 255,943.13

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Solution

The fourth proportional to 816,864.89, 1,225,413.97 and 255,943.13 is: 383,951.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,864.89 : 1,225,413.97 = 255,943.13 : x
  2. Step 2: Convert to fraction form
    816,864.89/1,225,413.97 = 255,943.13/x
  3. Step 3: Cross multiply
    816,864.89x = 1,225,413.97 × 255,943.13
  4. Step 4: Simplify right side
    816,864.89x = 313,636,280,260.60
  5. Step 5: Solve for x
    x = 313,636,280,260.60/816,864.89
  6. Step 6: Final answer
    x = 383,951.23

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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.