Home / 1,185,871.68-1,636,491.16-641,993.08

Finding the Fourth Proportional to 1,185,871.68, 1,636,491.16 and 641,993.08

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Solution

The fourth proportional to 1,185,871.68, 1,636,491.16 and 641,993.08 is: 885,944.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,871.68 : 1,636,491.16 = 641,993.08 : x
  2. Step 2: Convert to fraction form
    1,185,871.68/1,636,491.16 = 641,993.08/x
  3. Step 3: Cross multiply
    1,185,871.68x = 1,636,491.16 × 641,993.08
  4. Step 4: Simplify right side
    1,185,871.68x = 1,050,616,000,201.17
  5. Step 5: Solve for x
    x = 1,050,616,000,201.17/1,185,871.68
  6. Step 6: Final answer
    x = 885,944.08

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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.