Home / 780,853.44-1,077,570.21-436,685.55

Finding the Fourth Proportional to 780,853.44, 1,077,570.21 and 436,685.55

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Solution

The fourth proportional to 780,853.44, 1,077,570.21 and 436,685.55 is: 602,621.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,853.44 : 1,077,570.21 = 436,685.55 : x
  2. Step 2: Convert to fraction form
    780,853.44/1,077,570.21 = 436,685.55/x
  3. Step 3: Cross multiply
    780,853.44x = 1,077,570.21 × 436,685.55
  4. Step 4: Simplify right side
    780,853.44x = 470,559,339,817.47
  5. Step 5: Solve for x
    x = 470,559,339,817.47/780,853.44
  6. Step 6: Final answer
    x = 602,621.84

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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.