Home / 837,538.20-1,256,307.30-338,902.20

Finding the Fourth Proportional to 837,538.20, 1,256,307.30 and 338,902.20

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Solution

The fourth proportional to 837,538.20, 1,256,307.30 and 338,902.20 is: 508,353.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,538.20 : 1,256,307.30 = 338,902.20 : x
  2. Step 2: Convert to fraction form
    837,538.20/1,256,307.30 = 338,902.20/x
  3. Step 3: Cross multiply
    837,538.20x = 1,256,307.30 × 338,902.20
  4. Step 4: Simplify right side
    837,538.20x = 425,765,307,846.06
  5. Step 5: Solve for x
    x = 425,765,307,846.06/837,538.20
  6. Step 6: Final answer
    x = 508,353.30

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Half scale
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Double scale
Find fourth proportional to 837,539.20, 1,256,308.80 and 338,903.20
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.