Home / 985,606.11-1,360,136.16-555,885.36

Finding the Fourth Proportional to 985,606.11, 1,360,136.16 and 555,885.36

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Solution

The fourth proportional to 985,606.11, 1,360,136.16 and 555,885.36 is: 767,121.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,606.11 : 1,360,136.16 = 555,885.36 : x
  2. Step 2: Convert to fraction form
    985,606.11/1,360,136.16 = 555,885.36/x
  3. Step 3: Cross multiply
    985,606.11x = 1,360,136.16 × 555,885.36
  4. Step 4: Simplify right side
    985,606.11x = 756,079,778,950.62
  5. Step 5: Solve for x
    x = 756,079,778,950.62/985,606.11
  6. Step 6: Final answer
    x = 767,121.64

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1.5x scale

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.