Home / 1,223,554.73-1,688,458.52-679,724.69

Finding the Fourth Proportional to 1,223,554.73, 1,688,458.52 and 679,724.69

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Solution

The fourth proportional to 1,223,554.73, 1,688,458.52 and 679,724.69 is: 937,993.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,554.73 : 1,688,458.52 = 679,724.69 : x
  2. Step 2: Convert to fraction form
    1,223,554.73/1,688,458.52 = 679,724.69/x
  3. Step 3: Cross multiply
    1,223,554.73x = 1,688,458.52 × 679,724.69
  4. Step 4: Simplify right side
    1,223,554.73x = 1,147,686,937,341.88
  5. Step 5: Solve for x
    x = 1,147,686,937,341.88/1,223,554.73
  6. Step 6: Final answer
    x = 937,993.96

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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.