Home / 986,315.40-1,361,187.18-556,633.08

Finding the Fourth Proportional to 986,315.40, 1,361,187.18 and 556,633.08

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Solution

The fourth proportional to 986,315.40, 1,361,187.18 and 556,633.08 is: 768,194.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,315.40 : 1,361,187.18 = 556,633.08 : x
  2. Step 2: Convert to fraction form
    986,315.40/1,361,187.18 = 556,633.08/x
  3. Step 3: Cross multiply
    986,315.40x = 1,361,187.18 × 556,633.08
  4. Step 4: Simplify right side
    986,315.40x = 757,681,812,459.91
  5. Step 5: Solve for x
    x = 757,681,812,459.91/986,315.40
  6. Step 6: Final answer
    x = 768,194.24

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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.