Home / 547,748.20-821,622.30-153,764.20

Finding the Fourth Proportional to 547,748.20, 821,622.30 and 153,764.20

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Solution

The fourth proportional to 547,748.20, 821,622.30 and 153,764.20 is: 230,646.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,748.20 : 821,622.30 = 153,764.20 : x
  2. Step 2: Convert to fraction form
    547,748.20/821,622.30 = 153,764.20/x
  3. Step 3: Cross multiply
    547,748.20x = 821,622.30 × 153,764.20
  4. Step 4: Simplify right side
    547,748.20x = 126,336,095,661.66
  5. Step 5: Solve for x
    x = 126,336,095,661.66/547,748.20
  6. Step 6: Final answer
    x = 230,646.30

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Half scale
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Double scale
Find fourth proportional to 547,749.20, 821,623.80 and 153,765.20
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.