Home / 921,609.54-1,382,413.23-256,761.54

Finding the Fourth Proportional to 921,609.54, 1,382,413.23 and 256,761.54

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Solution

The fourth proportional to 921,609.54, 1,382,413.23 and 256,761.54 is: 385,142.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,609.54 : 1,382,413.23 = 256,761.54 : x
  2. Step 2: Convert to fraction form
    921,609.54/1,382,413.23 = 256,761.54/x
  3. Step 3: Cross multiply
    921,609.54x = 1,382,413.23 × 256,761.54
  4. Step 4: Simplify right side
    921,609.54x = 354,950,549,851.17
  5. Step 5: Solve for x
    x = 354,950,549,851.17/921,609.54
  6. Step 6: Final answer
    x = 385,142.01

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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.