Home / 1,938,539.28-2,907,808.95-872,335.74

Finding the Fourth Proportional to 1,938,539.28, 2,907,808.95 and 872,335.74

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Solution

The fourth proportional to 1,938,539.28, 2,907,808.95 and 872,335.74 is: 1,308,503.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,539.28 : 2,907,808.95 = 872,335.74 : x
  2. Step 2: Convert to fraction form
    1,938,539.28/2,907,808.95 = 872,335.74/x
  3. Step 3: Cross multiply
    1,938,539.28x = 2,907,808.95 × 872,335.74
  4. Step 4: Simplify right side
    1,938,539.28x = 2,536,585,672,176.87
  5. Step 5: Solve for x
    x = 2,536,585,672,176.87/1,938,539.28
  6. Step 6: Final answer
    x = 1,308,503.62

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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.