Home / 779,985.98-1,075,339.77-619,372.70

Finding the Fourth Proportional to 779,985.98, 1,075,339.77 and 619,372.70

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Solution

The fourth proportional to 779,985.98, 1,075,339.77 and 619,372.70 is: 853,907.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,985.98 : 1,075,339.77 = 619,372.70 : x
  2. Step 2: Convert to fraction form
    779,985.98/1,075,339.77 = 619,372.70/x
  3. Step 3: Cross multiply
    779,985.98x = 1,075,339.77 × 619,372.70
  4. Step 4: Simplify right side
    779,985.98x = 666,036,096,762.28
  5. Step 5: Solve for x
    x = 666,036,096,762.28/779,985.98
  6. Step 6: Final answer
    x = 853,907.78

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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.