Home / 821,891.31-1,133,475.63-515,996.20

Finding the Fourth Proportional to 821,891.31, 1,133,475.63 and 515,996.20

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Solution

The fourth proportional to 821,891.31, 1,133,475.63 and 515,996.20 is: 711,613.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,891.31 : 1,133,475.63 = 515,996.20 : x
  2. Step 2: Convert to fraction form
    821,891.31/1,133,475.63 = 515,996.20/x
  3. Step 3: Cross multiply
    821,891.31x = 1,133,475.63 × 515,996.20
  4. Step 4: Simplify right side
    821,891.31x = 584,869,114,166.57
  5. Step 5: Solve for x
    x = 584,869,114,166.57/821,891.31
  6. Step 6: Final answer
    x = 711,613.70

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Half scale
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Double scale
Find fourth proportional to 821,892.31, 1,133,477.01 and 515,997.20
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.