Home / 778,219.20-1,074,181.76-456,033.06

Finding the Fourth Proportional to 778,219.20, 1,074,181.76 and 456,033.06

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Solution

The fourth proportional to 778,219.20, 1,074,181.76 and 456,033.06 is: 629,465.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,219.20 : 1,074,181.76 = 456,033.06 : x
  2. Step 2: Convert to fraction form
    778,219.20/1,074,181.76 = 456,033.06/x
  3. Step 3: Cross multiply
    778,219.20x = 1,074,181.76 × 456,033.06
  4. Step 4: Simplify right side
    778,219.20x = 489,862,395,008.99
  5. Step 5: Solve for x
    x = 489,862,395,008.99/778,219.20
  6. Step 6: Final answer
    x = 629,465.83

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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.