Home / 827,391.12-1,142,235.72-556,881.36

Finding the Fourth Proportional to 827,391.12, 1,142,235.72 and 556,881.36

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Solution

The fourth proportional to 827,391.12, 1,142,235.72 and 556,881.36 is: 768,789.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,391.12 : 1,142,235.72 = 556,881.36 : x
  2. Step 2: Convert to fraction form
    827,391.12/1,142,235.72 = 556,881.36/x
  3. Step 3: Cross multiply
    827,391.12x = 1,142,235.72 × 556,881.36
  4. Step 4: Simplify right side
    827,391.12x = 636,089,781,194.18
  5. Step 5: Solve for x
    x = 636,089,781,194.18/827,391.12
  6. Step 6: Final answer
    x = 768,789.71

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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.