Home / 1,018,993.52-1,403,780.64-712,496.39

Finding the Fourth Proportional to 1,018,993.52, 1,403,780.64 and 712,496.39

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Solution

The fourth proportional to 1,018,993.52, 1,403,780.64 and 712,496.39 is: 981,545.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,993.52 : 1,403,780.64 = 712,496.39 : x
  2. Step 2: Convert to fraction form
    1,018,993.52/1,403,780.64 = 712,496.39/x
  3. Step 3: Cross multiply
    1,018,993.52x = 1,403,780.64 × 712,496.39
  4. Step 4: Simplify right side
    1,018,993.52x = 1,000,188,638,351.89
  5. Step 5: Solve for x
    x = 1,000,188,638,351.89/1,018,993.52
  6. Step 6: Final answer
    x = 981,545.63

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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.