Home / 770,211.54-1,154,617.47-349,257.78

Finding the Fourth Proportional to 770,211.54, 1,154,617.47 and 349,257.78

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Solution

The fourth proportional to 770,211.54, 1,154,617.47 and 349,257.78 is: 523,569.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,211.54 : 1,154,617.47 = 349,257.78 : x
  2. Step 2: Convert to fraction form
    770,211.54/1,154,617.47 = 349,257.78/x
  3. Step 3: Cross multiply
    770,211.54x = 1,154,617.47 × 349,257.78
  4. Step 4: Simplify right side
    770,211.54x = 403,259,134,321.42
  5. Step 5: Solve for x
    x = 403,259,134,321.42/770,211.54
  6. Step 6: Final answer
    x = 523,569.32

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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.