Home / 778,524.10-1,074,160.64-456,061.20

Finding the Fourth Proportional to 778,524.10, 1,074,160.64 and 456,061.20

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Solution

The fourth proportional to 778,524.10, 1,074,160.64 and 456,061.20 is: 629,245.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,524.10 : 1,074,160.64 = 456,061.20 : x
  2. Step 2: Convert to fraction form
    778,524.10/1,074,160.64 = 456,061.20/x
  3. Step 3: Cross multiply
    778,524.10x = 1,074,160.64 × 456,061.20
  4. Step 4: Simplify right side
    778,524.10x = 489,882,990,471.17
  5. Step 5: Solve for x
    x = 489,882,990,471.17/778,524.10
  6. Step 6: Final answer
    x = 629,245.76

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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.