Home / 1,270,505.03-1,905,352.92-417,378.65

Finding the Fourth Proportional to 1,270,505.03, 1,905,352.92 and 417,378.65

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Solution

The fourth proportional to 1,270,505.03, 1,905,352.92 and 417,378.65 is: 625,935.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,505.03 : 1,905,352.92 = 417,378.65 : x
  2. Step 2: Convert to fraction form
    1,270,505.03/1,905,352.92 = 417,378.65/x
  3. Step 3: Cross multiply
    1,270,505.03x = 1,905,352.92 × 417,378.65
  4. Step 4: Simplify right side
    1,270,505.03x = 795,253,619,996.39
  5. Step 5: Solve for x
    x = 795,253,619,996.39/1,270,505.03
  6. Step 6: Final answer
    x = 625,935.05

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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.