Home / 711,817.08-982,300.23-405,943.26

Finding the Fourth Proportional to 711,817.08, 982,300.23 and 405,943.26

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Solution

The fourth proportional to 711,817.08, 982,300.23 and 405,943.26 is: 560,197.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,817.08 : 982,300.23 = 405,943.26 : x
  2. Step 2: Convert to fraction form
    711,817.08/982,300.23 = 405,943.26/x
  3. Step 3: Cross multiply
    711,817.08x = 982,300.23 × 405,943.26
  4. Step 4: Simplify right side
    711,817.08x = 398,758,157,664.95
  5. Step 5: Solve for x
    x = 398,758,157,664.95/711,817.08
  6. Step 6: Final answer
    x = 560,197.51

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Double scale
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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.