Home / 695,218.40-1,043,605.20-538,143.20

Finding the Fourth Proportional to 695,218.40, 1,043,605.20 and 538,143.20

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Solution

The fourth proportional to 695,218.40, 1,043,605.20 and 538,143.20 is: 807,816.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,218.40 : 1,043,605.20 = 538,143.20 : x
  2. Step 2: Convert to fraction form
    695,218.40/1,043,605.20 = 538,143.20/x
  3. Step 3: Cross multiply
    695,218.40x = 1,043,605.20 × 538,143.20
  4. Step 4: Simplify right side
    695,218.40x = 561,609,041,864.64
  5. Step 5: Solve for x
    x = 561,609,041,864.64/695,218.40
  6. Step 6: Final answer
    x = 807,816.71

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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.