Home / 913,193.69-1,260,121.45-618,243.39

Finding the Fourth Proportional to 913,193.69, 1,260,121.45 and 618,243.39

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Solution

The fourth proportional to 913,193.69, 1,260,121.45 and 618,243.39 is: 853,117.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,193.69 : 1,260,121.45 = 618,243.39 : x
  2. Step 2: Convert to fraction form
    913,193.69/1,260,121.45 = 618,243.39/x
  3. Step 3: Cross multiply
    913,193.69x = 1,260,121.45 × 618,243.39
  4. Step 4: Simplify right side
    913,193.69x = 779,061,754,978.13
  5. Step 5: Solve for x
    x = 779,061,754,978.13/913,193.69
  6. Step 6: Final answer
    x = 853,117.76

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1.5x scale

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.