Home / 628,982.20-943,473.30-419,030.20

Finding the Fourth Proportional to 628,982.20, 943,473.30 and 419,030.20

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Solution

The fourth proportional to 628,982.20, 943,473.30 and 419,030.20 is: 628,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,982.20 : 943,473.30 = 419,030.20 : x
  2. Step 2: Convert to fraction form
    628,982.20/943,473.30 = 419,030.20/x
  3. Step 3: Cross multiply
    628,982.20x = 943,473.30 × 419,030.20
  4. Step 4: Simplify right side
    628,982.20x = 395,343,805,593.66
  5. Step 5: Solve for x
    x = 395,343,805,593.66/628,982.20
  6. Step 6: Final answer
    x = 628,545.30

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Half scale
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Double scale
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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.