Home / 828,084.09-1,142,680.63-479,164.19

Finding the Fourth Proportional to 828,084.09, 1,142,680.63 and 479,164.19

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Solution

The fourth proportional to 828,084.09, 1,142,680.63 and 479,164.19 is: 661,202.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,084.09 : 1,142,680.63 = 479,164.19 : x
  2. Step 2: Convert to fraction form
    828,084.09/1,142,680.63 = 479,164.19/x
  3. Step 3: Cross multiply
    828,084.09x = 1,142,680.63 × 479,164.19
  4. Step 4: Simplify right side
    828,084.09x = 547,531,632,789.24
  5. Step 5: Solve for x
    x = 547,531,632,789.24/828,084.09
  6. Step 6: Final answer
    x = 661,202.94

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Half scale
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Double scale
Find fourth proportional to 828,085.09, 1,142,682.01 and 479,165.19
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.