Home / 986,316.90-1,361,189.25-556,634.58

Finding the Fourth Proportional to 986,316.90, 1,361,189.25 and 556,634.58

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Solution

The fourth proportional to 986,316.90, 1,361,189.25 and 556,634.58 is: 768,196.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,316.90 : 1,361,189.25 = 556,634.58 : x
  2. Step 2: Convert to fraction form
    986,316.90/1,361,189.25 = 556,634.58/x
  3. Step 3: Cross multiply
    986,316.90x = 1,361,189.25 × 556,634.58
  4. Step 4: Simplify right side
    986,316.90x = 757,685,006,474.27
  5. Step 5: Solve for x
    x = 757,685,006,474.27/986,316.90
  6. Step 6: Final answer
    x = 768,196.31

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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.