Home / 1,256,905.38-1,885,653.36-415,457.13

Finding the Fourth Proportional to 1,256,905.38, 1,885,653.36 and 415,457.13

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Solution

The fourth proportional to 1,256,905.38, 1,885,653.36 and 415,457.13 is: 623,283.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,905.38 : 1,885,653.36 = 415,457.13 : x
  2. Step 2: Convert to fraction form
    1,256,905.38/1,885,653.36 = 415,457.13/x
  3. Step 3: Cross multiply
    1,256,905.38x = 1,885,653.36 × 415,457.13
  4. Step 4: Simplify right side
    1,256,905.38x = 783,408,133,120.46
  5. Step 5: Solve for x
    x = 783,408,133,120.46/1,256,905.38
  6. Step 6: Final answer
    x = 623,283.30

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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.