Home / 807,920.38-1,114,929.81-445,350.25

Finding the Fourth Proportional to 807,920.38, 1,114,929.81 and 445,350.25

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Solution

The fourth proportional to 807,920.38, 1,114,929.81 and 445,350.25 is: 614,583.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,920.38 : 1,114,929.81 = 445,350.25 : x
  2. Step 2: Convert to fraction form
    807,920.38/1,114,929.81 = 445,350.25/x
  3. Step 3: Cross multiply
    807,920.38x = 1,114,929.81 × 445,350.25
  4. Step 4: Simplify right side
    807,920.38x = 496,534,269,615.95
  5. Step 5: Solve for x
    x = 496,534,269,615.95/807,920.38
  6. Step 6: Final answer
    x = 614,583.17

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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.