Home / 1,163,131.50-1,744,697.25-321,683.25

Finding the Fourth Proportional to 1,163,131.50, 1,744,697.25 and 321,683.25

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Solution

The fourth proportional to 1,163,131.50, 1,744,697.25 and 321,683.25 is: 482,524.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163,131.50 : 1,744,697.25 = 321,683.25 : x
  2. Step 2: Convert to fraction form
    1,163,131.50/1,744,697.25 = 321,683.25/x
  3. Step 3: Cross multiply
    1,163,131.50x = 1,744,697.25 × 321,683.25
  4. Step 4: Simplify right side
    1,163,131.50x = 561,239,881,646.06
  5. Step 5: Solve for x
    x = 561,239,881,646.06/1,163,131.50
  6. Step 6: Final answer
    x = 482,524.88

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Half scale
Find fourth proportional to 2,326,263, 3,489,394.50 and 643,366.50
Double scale
Find fourth proportional to 1,163,132.50, 1,744,698.75 and 321,684.25
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.