Home / 1,223,995.46-1,689,080.17-680,117.29

Finding the Fourth Proportional to 1,223,995.46, 1,689,080.17 and 680,117.29

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Solution

The fourth proportional to 1,223,995.46, 1,689,080.17 and 680,117.29 is: 938,543.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,995.46 : 1,689,080.17 = 680,117.29 : x
  2. Step 2: Convert to fraction form
    1,223,995.46/1,689,080.17 = 680,117.29/x
  3. Step 3: Cross multiply
    1,223,995.46x = 1,689,080.17 × 680,117.29
  4. Step 4: Simplify right side
    1,223,995.46x = 1,148,772,627,813.14
  5. Step 5: Solve for x
    x = 1,148,772,627,813.14/1,223,995.46
  6. Step 6: Final answer
    x = 938,543.21

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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.