Home / 1,253,088.51-1,729,263.85-680,128.76

Finding the Fourth Proportional to 1,253,088.51, 1,729,263.85 and 680,128.76

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Solution

The fourth proportional to 1,253,088.51, 1,729,263.85 and 680,128.76 is: 938,578.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,088.51 : 1,729,263.85 = 680,128.76 : x
  2. Step 2: Convert to fraction form
    1,253,088.51/1,729,263.85 = 680,128.76/x
  3. Step 3: Cross multiply
    1,253,088.51x = 1,729,263.85 × 680,128.76
  4. Step 4: Simplify right side
    1,253,088.51x = 1,176,122,067,666.68
  5. Step 5: Solve for x
    x = 1,176,122,067,666.68/1,253,088.51
  6. Step 6: Final answer
    x = 938,578.61

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Double scale
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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.