Home / 1,289,621.40-1,932,531.30-935,381.40

Finding the Fourth Proportional to 1,289,621.40, 1,932,531.30 and 935,381.40

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Solution

The fourth proportional to 1,289,621.40, 1,932,531.30 and 935,381.40 is: 1,401,693.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,621.40 : 1,932,531.30 = 935,381.40 : x
  2. Step 2: Convert to fraction form
    1,289,621.40/1,932,531.30 = 935,381.40/x
  3. Step 3: Cross multiply
    1,289,621.40x = 1,932,531.30 × 935,381.40
  4. Step 4: Simplify right side
    1,289,621.40x = 1,807,653,832,937.82
  5. Step 5: Solve for x
    x = 1,807,653,832,937.82/1,289,621.40
  6. Step 6: Final answer
    x = 1,401,693.42

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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.