Home / 783,000.35-1,080,616.32-438,894.73

Finding the Fourth Proportional to 783,000.35, 1,080,616.32 and 438,894.73

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Solution

The fourth proportional to 783,000.35, 1,080,616.32 and 438,894.73 is: 605,717.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,000.35 : 1,080,616.32 = 438,894.73 : x
  2. Step 2: Convert to fraction form
    783,000.35/1,080,616.32 = 438,894.73/x
  3. Step 3: Cross multiply
    783,000.35x = 1,080,616.32 × 438,894.73
  4. Step 4: Simplify right side
    783,000.35x = 474,276,807,999.99
  5. Step 5: Solve for x
    x = 474,276,807,999.99/783,000.35
  6. Step 6: Final answer
    x = 605,717.24

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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.