Home / 886,989.40-1,330,484.10-513,741.40

Finding the Fourth Proportional to 886,989.40, 1,330,484.10 and 513,741.40

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Solution

The fourth proportional to 886,989.40, 1,330,484.10 and 513,741.40 is: 770,612.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,989.40 : 1,330,484.10 = 513,741.40 : x
  2. Step 2: Convert to fraction form
    886,989.40/1,330,484.10 = 513,741.40/x
  3. Step 3: Cross multiply
    886,989.40x = 1,330,484.10 × 513,741.40
  4. Step 4: Simplify right side
    886,989.40x = 683,524,764,211.74
  5. Step 5: Solve for x
    x = 683,524,764,211.74/886,989.40
  6. Step 6: Final answer
    x = 770,612.10

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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.