Home / 1,223,310.13-1,688,121.07-679,480.65

Finding the Fourth Proportional to 1,223,310.13, 1,688,121.07 and 679,480.65

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Solution

The fourth proportional to 1,223,310.13, 1,688,121.07 and 679,480.65 is: 937,657.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,310.13 : 1,688,121.07 = 679,480.65 : x
  2. Step 2: Convert to fraction form
    1,223,310.13/1,688,121.07 = 679,480.65/x
  3. Step 3: Cross multiply
    1,223,310.13x = 1,688,121.07 × 679,480.65
  4. Step 4: Simplify right side
    1,223,310.13x = 1,147,045,600,223.59
  5. Step 5: Solve for x
    x = 1,147,045,600,223.59/1,223,310.13
  6. Step 6: Final answer
    x = 937,657.24

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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.