Home / 1,868,211.40-2,801,928.30-520,025.80

Finding the Fourth Proportional to 1,868,211.40, 2,801,928.30 and 520,025.80

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Solution

The fourth proportional to 1,868,211.40, 2,801,928.30 and 520,025.80 is: 779,930.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,211.40 : 2,801,928.30 = 520,025.80 : x
  2. Step 2: Convert to fraction form
    1,868,211.40/2,801,928.30 = 520,025.80/x
  3. Step 3: Cross multiply
    1,868,211.40x = 2,801,928.30 × 520,025.80
  4. Step 4: Simplify right side
    1,868,211.40x = 1,457,075,005,750.14
  5. Step 5: Solve for x
    x = 1,457,075,005,750.14/1,868,211.40
  6. Step 6: Final answer
    x = 779,930.48

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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.