Home / 1,353,651.20-1,871,603.20-1,185,689.60

Finding the Fourth Proportional to 1,353,651.20, 1,871,603.20 and 1,185,689.60

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Solution

The fourth proportional to 1,353,651.20, 1,871,603.20 and 1,185,689.60 is: 1,639,373.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,651.20 : 1,871,603.20 = 1,185,689.60 : x
  2. Step 2: Convert to fraction form
    1,353,651.20/1,871,603.20 = 1,185,689.60/x
  3. Step 3: Cross multiply
    1,353,651.20x = 1,871,603.20 × 1,185,689.60
  4. Step 4: Simplify right side
    1,353,651.20x = 2,219,140,449,566.72
  5. Step 5: Solve for x
    x = 2,219,140,449,566.72/1,353,651.20
  6. Step 6: Final answer
    x = 1,639,373.90

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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.