Home / 1,605,195.76-2,215,354.80-916,976.56

Finding the Fourth Proportional to 1,605,195.76, 2,215,354.80 and 916,976.56

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Solution

The fourth proportional to 1,605,195.76, 2,215,354.80 and 916,976.56 is: 1,265,533.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,195.76 : 2,215,354.80 = 916,976.56 : x
  2. Step 2: Convert to fraction form
    1,605,195.76/2,215,354.80 = 916,976.56/x
  3. Step 3: Cross multiply
    1,605,195.76x = 2,215,354.80 × 916,976.56
  4. Step 4: Simplify right side
    1,605,195.76x = 2,031,428,423,683.49
  5. Step 5: Solve for x
    x = 2,031,428,423,683.49/1,605,195.76
  6. Step 6: Final answer
    x = 1,265,533.14

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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.