Home / 695,215.40-1,043,600.70-538,140.20

Finding the Fourth Proportional to 695,215.40, 1,043,600.70 and 538,140.20

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Solution

The fourth proportional to 695,215.40, 1,043,600.70 and 538,140.20 is: 807,812.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,215.40 : 1,043,600.70 = 538,140.20 : x
  2. Step 2: Convert to fraction form
    695,215.40/1,043,600.70 = 538,140.20/x
  3. Step 3: Cross multiply
    695,215.40x = 1,043,600.70 × 538,140.20
  4. Step 4: Simplify right side
    695,215.40x = 561,603,489,418.14
  5. Step 5: Solve for x
    x = 561,603,489,418.14/695,215.40
  6. Step 6: Final answer
    x = 807,812.21

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1.5x scale

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.