Home / 1,352,603.52-1,866,589.92-779,639.76

Finding the Fourth Proportional to 1,352,603.52, 1,866,589.92 and 779,639.76

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Solution

The fourth proportional to 1,352,603.52, 1,866,589.92 and 779,639.76 is: 1,075,901.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,603.52 : 1,866,589.92 = 779,639.76 : x
  2. Step 2: Convert to fraction form
    1,352,603.52/1,866,589.92 = 779,639.76/x
  3. Step 3: Cross multiply
    1,352,603.52x = 1,866,589.92 × 779,639.76
  4. Step 4: Simplify right side
    1,352,603.52x = 1,455,267,717,247.22
  5. Step 5: Solve for x
    x = 1,455,267,717,247.22/1,352,603.52
  6. Step 6: Final answer
    x = 1,075,901.18

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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.