Home / 1,638,273.81-2,457,409.42-440,196.12

Finding the Fourth Proportional to 1,638,273.81, 2,457,409.42 and 440,196.12

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Solution

The fourth proportional to 1,638,273.81, 2,457,409.42 and 440,196.12 is: 660,293.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,273.81 : 2,457,409.42 = 440,196.12 : x
  2. Step 2: Convert to fraction form
    1,638,273.81/2,457,409.42 = 440,196.12/x
  3. Step 3: Cross multiply
    1,638,273.81x = 2,457,409.42 × 440,196.12
  4. Step 4: Simplify right side
    1,638,273.81x = 1,081,742,091,935.45
  5. Step 5: Solve for x
    x = 1,081,742,091,935.45/1,638,273.81
  6. Step 6: Final answer
    x = 660,293.83

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Double scale
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Similar ratio
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1.5x scale

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.