Home / 873,662.40-1,205,363.16-712,239.12

Finding the Fourth Proportional to 873,662.40, 1,205,363.16 and 712,239.12

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Solution

The fourth proportional to 873,662.40, 1,205,363.16 and 712,239.12 is: 982,652.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,662.40 : 1,205,363.16 = 712,239.12 : x
  2. Step 2: Convert to fraction form
    873,662.40/1,205,363.16 = 712,239.12/x
  3. Step 3: Cross multiply
    873,662.40x = 1,205,363.16 × 712,239.12
  4. Step 4: Simplify right side
    873,662.40x = 858,506,796,358.82
  5. Step 5: Solve for x
    x = 858,506,796,358.82/873,662.40
  6. Step 6: Final answer
    x = 982,652.79

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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.