Home / 926,939.16-1,278,479.70-621,360.18

Finding the Fourth Proportional to 926,939.16, 1,278,479.70 and 621,360.18

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Solution

The fourth proportional to 926,939.16, 1,278,479.70 and 621,360.18 is: 857,010.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,939.16 : 1,278,479.70 = 621,360.18 : x
  2. Step 2: Convert to fraction form
    926,939.16/1,278,479.70 = 621,360.18/x
  3. Step 3: Cross multiply
    926,939.16x = 1,278,479.70 × 621,360.18
  4. Step 4: Simplify right side
    926,939.16x = 794,396,376,518.35
  5. Step 5: Solve for x
    x = 794,396,376,518.35/926,939.16
  6. Step 6: Final answer
    x = 857,010.27

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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.