Home / 1,223,562.80-1,688,469.76-679,732.80

Finding the Fourth Proportional to 1,223,562.80, 1,688,469.76 and 679,732.80

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Solution

The fourth proportional to 1,223,562.80, 1,688,469.76 and 679,732.80 is: 938,005.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,562.80 : 1,688,469.76 = 679,732.80 : x
  2. Step 2: Convert to fraction form
    1,223,562.80/1,688,469.76 = 679,732.80/x
  3. Step 3: Cross multiply
    1,223,562.80x = 1,688,469.76 × 679,732.80
  4. Step 4: Simplify right side
    1,223,562.80x = 1,147,708,277,680.13
  5. Step 5: Solve for x
    x = 1,147,708,277,680.13/1,223,562.80
  6. Step 6: Final answer
    x = 938,005.21

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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.