Home / 827,143.80-1,240,059.60-453,166.80

Finding the Fourth Proportional to 827,143.80, 1,240,059.60 and 453,166.80

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Solution

The fourth proportional to 827,143.80, 1,240,059.60 and 453,166.80 is: 679,390.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,143.80 : 1,240,059.60 = 453,166.80 : x
  2. Step 2: Convert to fraction form
    827,143.80/1,240,059.60 = 453,166.80/x
  3. Step 3: Cross multiply
    827,143.80x = 1,240,059.60 × 453,166.80
  4. Step 4: Simplify right side
    827,143.80x = 561,953,840,741.28
  5. Step 5: Solve for x
    x = 561,953,840,741.28/827,143.80
  6. Step 6: Final answer
    x = 679,390.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.