Home / 1,161,583.60-1,603,065-645,399.76

Finding the Fourth Proportional to 1,161,583.60, 1,603,065 and 645,399.76

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Solution

The fourth proportional to 1,161,583.60, 1,603,065 and 645,399.76 is: 890,695.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,583.60 : 1,603,065 = 645,399.76 : x
  2. Step 2: Convert to fraction form
    1,161,583.60/1,603,065 = 645,399.76/x
  3. Step 3: Cross multiply
    1,161,583.60x = 1,603,065 × 645,399.76
  4. Step 4: Simplify right side
    1,161,583.60x = 1,034,617,766,264.40
  5. Step 5: Solve for x
    x = 1,034,617,766,264.40/1,161,583.60
  6. Step 6: Final answer
    x = 890,695.91

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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.