Home / 756,415.80-1,133,457.30-656,105.40

Finding the Fourth Proportional to 756,415.80, 1,133,457.30 and 656,105.40

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Solution

The fourth proportional to 756,415.80, 1,133,457.30 and 656,105.40 is: 983,146.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,415.80 : 1,133,457.30 = 656,105.40 : x
  2. Step 2: Convert to fraction form
    756,415.80/1,133,457.30 = 656,105.40/x
  3. Step 3: Cross multiply
    756,415.80x = 1,133,457.30 × 656,105.40
  4. Step 4: Simplify right side
    756,415.80x = 743,667,455,199.42
  5. Step 5: Solve for x
    x = 743,667,455,199.42/756,415.80
  6. Step 6: Final answer
    x = 983,146.38

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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.