Home / 1,215,898.56-1,677,941.63-699,642.18

Finding the Fourth Proportional to 1,215,898.56, 1,677,941.63 and 699,642.18

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Solution

The fourth proportional to 1,215,898.56, 1,677,941.63 and 699,642.18 is: 965,507.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,898.56 : 1,677,941.63 = 699,642.18 : x
  2. Step 2: Convert to fraction form
    1,215,898.56/1,677,941.63 = 699,642.18/x
  3. Step 3: Cross multiply
    1,215,898.56x = 1,677,941.63 × 699,642.18
  4. Step 4: Simplify right side
    1,215,898.56x = 1,173,958,739,925.95
  5. Step 5: Solve for x
    x = 1,173,958,739,925.95/1,215,898.56
  6. Step 6: Final answer
    x = 965,507.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.