Home / 779,984.98-1,075,338.39-619,371.70

Finding the Fourth Proportional to 779,984.98, 1,075,338.39 and 619,371.70

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Solution

The fourth proportional to 779,984.98, 1,075,338.39 and 619,371.70 is: 853,906.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,984.98 : 1,075,338.39 = 619,371.70 : x
  2. Step 2: Convert to fraction form
    779,984.98/1,075,338.39 = 619,371.70/x
  3. Step 3: Cross multiply
    779,984.98x = 1,075,338.39 × 619,371.70
  4. Step 4: Simplify right side
    779,984.98x = 666,034,166,689.56
  5. Step 5: Solve for x
    x = 666,034,166,689.56/779,984.98
  6. Step 6: Final answer
    x = 853,906.40

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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.