Home / 770,481.32-1,064,280.16-591,406.11

Finding the Fourth Proportional to 770,481.32, 1,064,280.16 and 591,406.11

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Solution

The fourth proportional to 770,481.32, 1,064,280.16 and 591,406.11 is: 816,920.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,481.32 : 1,064,280.16 = 591,406.11 : x
  2. Step 2: Convert to fraction form
    770,481.32/1,064,280.16 = 591,406.11/x
  3. Step 3: Cross multiply
    770,481.32x = 1,064,280.16 × 591,406.11
  4. Step 4: Simplify right side
    770,481.32x = 629,421,790,115.04
  5. Step 5: Solve for x
    x = 629,421,790,115.04/770,481.32
  6. Step 6: Final answer
    x = 816,920.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.