Home / 885,772.70-1,328,659.05-511,358.30

Finding the Fourth Proportional to 885,772.70, 1,328,659.05 and 511,358.30

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Solution

The fourth proportional to 885,772.70, 1,328,659.05 and 511,358.30 is: 767,037.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,772.70 : 1,328,659.05 = 511,358.30 : x
  2. Step 2: Convert to fraction form
    885,772.70/1,328,659.05 = 511,358.30/x
  3. Step 3: Cross multiply
    885,772.70x = 1,328,659.05 × 511,358.30
  4. Step 4: Simplify right side
    885,772.70x = 679,420,833,087.62
  5. Step 5: Solve for x
    x = 679,420,833,087.62/885,772.70
  6. Step 6: Final answer
    x = 767,037.45

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Half scale
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Double scale
Find fourth proportional to 885,773.70, 1,328,660.55 and 511,359.30
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.