Home / 905,442.56-1,247,929.09-663,210.44

Finding the Fourth Proportional to 905,442.56, 1,247,929.09 and 663,210.44

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Solution

The fourth proportional to 905,442.56, 1,247,929.09 and 663,210.44 is: 914,071.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,442.56 : 1,247,929.09 = 663,210.44 : x
  2. Step 2: Convert to fraction form
    905,442.56/1,247,929.09 = 663,210.44/x
  3. Step 3: Cross multiply
    905,442.56x = 1,247,929.09 × 663,210.44
  4. Step 4: Simplify right side
    905,442.56x = 827,639,592,970.03
  5. Step 5: Solve for x
    x = 827,639,592,970.03/905,442.56
  6. Step 6: Final answer
    x = 914,071.90

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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.