Home / 1,938,379.80-2,907,569-518,398.96

Finding the Fourth Proportional to 1,938,379.80, 2,907,569 and 518,398.96

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Solution

The fourth proportional to 1,938,379.80, 2,907,569 and 518,398.96 is: 777,598.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,379.80 : 2,907,569 = 518,398.96 : x
  2. Step 2: Convert to fraction form
    1,938,379.80/2,907,569 = 518,398.96/x
  3. Step 3: Cross multiply
    1,938,379.80x = 2,907,569 × 518,398.96
  4. Step 4: Simplify right side
    1,938,379.80x = 1,507,280,745,728.24
  5. Step 5: Solve for x
    x = 1,507,280,745,728.24/1,938,379.80
  6. Step 6: Final answer
    x = 777,598.25

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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.