Home / 1,868,190.90-2,801,897.55-520,005.30

Finding the Fourth Proportional to 1,868,190.90, 2,801,897.55 and 520,005.30

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Solution

The fourth proportional to 1,868,190.90, 2,801,897.55 and 520,005.30 is: 779,899.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,190.90 : 2,801,897.55 = 520,005.30 : x
  2. Step 2: Convert to fraction form
    1,868,190.90/2,801,897.55 = 520,005.30/x
  3. Step 3: Cross multiply
    1,868,190.90x = 2,801,897.55 × 520,005.30
  4. Step 4: Simplify right side
    1,868,190.90x = 1,457,001,576,057.02
  5. Step 5: Solve for x
    x = 1,457,001,576,057.02/1,868,190.90
  6. Step 6: Final answer
    x = 779,899.73

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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.