Home / 687,206.40-1,030,809.60-181,766.40

Finding the Fourth Proportional to 687,206.40, 1,030,809.60 and 181,766.40

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Solution

The fourth proportional to 687,206.40, 1,030,809.60 and 181,766.40 is: 272,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,206.40 : 1,030,809.60 = 181,766.40 : x
  2. Step 2: Convert to fraction form
    687,206.40/1,030,809.60 = 181,766.40/x
  3. Step 3: Cross multiply
    687,206.40x = 1,030,809.60 × 181,766.40
  4. Step 4: Simplify right side
    687,206.40x = 187,366,550,077.44
  5. Step 5: Solve for x
    x = 187,366,550,077.44/687,206.40
  6. Step 6: Final answer
    x = 272,649.60

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Similar ratio
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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.