Home / 853,811.47-1,281,583.81-427,652.65

Finding the Fourth Proportional to 853,811.47, 1,281,583.81 and 427,652.65

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Solution

The fourth proportional to 853,811.47, 1,281,583.81 and 427,652.65 is: 641,913.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,811.47 : 1,281,583.81 = 427,652.65 : x
  2. Step 2: Convert to fraction form
    853,811.47/1,281,583.81 = 427,652.65/x
  3. Step 3: Cross multiply
    853,811.47x = 1,281,583.81 × 427,652.65
  4. Step 4: Simplify right side
    853,811.47x = 548,072,705,065.69
  5. Step 5: Solve for x
    x = 548,072,705,065.69/853,811.47
  6. Step 6: Final answer
    x = 641,913.03

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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.