Home / 906,538.38-1,250,996.85-498,640.20

Finding the Fourth Proportional to 906,538.38, 1,250,996.85 and 498,640.20

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Solution

The fourth proportional to 906,538.38, 1,250,996.85 and 498,640.20 is: 688,109.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,538.38 : 1,250,996.85 = 498,640.20 : x
  2. Step 2: Convert to fraction form
    906,538.38/1,250,996.85 = 498,640.20/x
  3. Step 3: Cross multiply
    906,538.38x = 1,250,996.85 × 498,640.20
  4. Step 4: Simplify right side
    906,538.38x = 623,797,319,483.37
  5. Step 5: Solve for x
    x = 623,797,319,483.37/906,538.38
  6. Step 6: Final answer
    x = 688,109.11

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Half scale
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Double scale
Find fourth proportional to 906,539.38, 1,250,998.23 and 498,641.20
Similar ratio
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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.