Home / 1,291,064.64-1,936,526.84-392,436.34

Finding the Fourth Proportional to 1,291,064.64, 1,936,526.84 and 392,436.34

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Solution

The fourth proportional to 1,291,064.64, 1,936,526.84 and 392,436.34 is: 588,633.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,064.64 : 1,936,526.84 = 392,436.34 : x
  2. Step 2: Convert to fraction form
    1,291,064.64/1,936,526.84 = 392,436.34/x
  3. Step 3: Cross multiply
    1,291,064.64x = 1,936,526.84 × 392,436.34
  4. Step 4: Simplify right side
    1,291,064.64x = 759,963,505,401.37
  5. Step 5: Solve for x
    x = 759,963,505,401.37/1,291,064.64
  6. Step 6: Final answer
    x = 588,633.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.