Home / 1,989,125.13-2,745,321.89-1,173,528.21

Finding the Fourth Proportional to 1,989,125.13, 2,745,321.89 and 1,173,528.21

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Solution

The fourth proportional to 1,989,125.13, 2,745,321.89 and 1,173,528.21 is: 1,619,663.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,125.13 : 2,745,321.89 = 1,173,528.21 : x
  2. Step 2: Convert to fraction form
    1,989,125.13/2,745,321.89 = 1,173,528.21/x
  3. Step 3: Cross multiply
    1,989,125.13x = 2,745,321.89 × 1,173,528.21
  4. Step 4: Simplify right side
    1,989,125.13x = 3,221,712,677,577.88
  5. Step 5: Solve for x
    x = 3,221,712,677,577.88/1,989,125.13
  6. Step 6: Final answer
    x = 1,619,663.15

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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.