Home / 986,661.42-1,361,494.35-556,858.55

Finding the Fourth Proportional to 986,661.42, 1,361,494.35 and 556,858.55

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Solution

The fourth proportional to 986,661.42, 1,361,494.35 and 556,858.55 is: 768,409.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,661.42 : 1,361,494.35 = 556,858.55 : x
  2. Step 2: Convert to fraction form
    986,661.42/1,361,494.35 = 556,858.55/x
  3. Step 3: Cross multiply
    986,661.42x = 1,361,494.35 × 556,858.55
  4. Step 4: Simplify right side
    986,661.42x = 758,159,769,574.19
  5. Step 5: Solve for x
    x = 758,159,769,574.19/986,661.42
  6. Step 6: Final answer
    x = 768,409.26

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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.