Home / 783,770.06-1,081,832.32-511,880.20

Finding the Fourth Proportional to 783,770.06, 1,081,832.32 and 511,880.20

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Solution

The fourth proportional to 783,770.06, 1,081,832.32 and 511,880.20 is: 706,544.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,770.06 : 1,081,832.32 = 511,880.20 : x
  2. Step 2: Convert to fraction form
    783,770.06/1,081,832.32 = 511,880.20/x
  3. Step 3: Cross multiply
    783,770.06x = 1,081,832.32 × 511,880.20
  4. Step 4: Simplify right side
    783,770.06x = 553,768,544,328.06
  5. Step 5: Solve for x
    x = 553,768,544,328.06/783,770.06
  6. Step 6: Final answer
    x = 706,544.65

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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.