Home / 1,938,378.79-2,907,567.51-518,397.96

Finding the Fourth Proportional to 1,938,378.79, 2,907,567.51 and 518,397.96

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Solution

The fourth proportional to 1,938,378.79, 2,907,567.51 and 518,397.96 is: 777,596.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,378.79 : 2,907,567.51 = 518,397.96 : x
  2. Step 2: Convert to fraction form
    1,938,378.79/2,907,567.51 = 518,397.96/x
  3. Step 3: Cross multiply
    1,938,378.79x = 2,907,567.51 × 518,397.96
  4. Step 4: Simplify right side
    1,938,378.79x = 1,507,277,065,746.28
  5. Step 5: Solve for x
    x = 1,507,277,065,746.28/1,938,378.79
  6. Step 6: Final answer
    x = 777,596.76

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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.