Home / 579,059.57-868,705.44-199,994.20

Finding the Fourth Proportional to 579,059.57, 868,705.44 and 199,994.20

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Solution

The fourth proportional to 579,059.57, 868,705.44 and 199,994.20 is: 300,031.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,059.57 : 868,705.44 = 199,994.20 : x
  2. Step 2: Convert to fraction form
    579,059.57/868,705.44 = 199,994.20/x
  3. Step 3: Cross multiply
    579,059.57x = 868,705.44 × 199,994.20
  4. Step 4: Simplify right side
    579,059.57x = 173,736,049,508.45
  5. Step 5: Solve for x
    x = 173,736,049,508.45/579,059.57
  6. Step 6: Final answer
    x = 300,031.40

Related Problems

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Half scale
Find fourth proportional to 1,158,119.13, 1,737,410.88 and 399,988.40
Double scale
Find fourth proportional to 579,060.57, 868,706.94 and 199,995.20
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.