Home / 1,638,340.56-2,457,508.71-440,262.88

Finding the Fourth Proportional to 1,638,340.56, 2,457,508.71 and 440,262.88

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Solution

The fourth proportional to 1,638,340.56, 2,457,508.71 and 440,262.88 is: 660,393.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,340.56 : 2,457,508.71 = 440,262.88 : x
  2. Step 2: Convert to fraction form
    1,638,340.56/2,457,508.71 = 440,262.88/x
  3. Step 3: Cross multiply
    1,638,340.56x = 2,457,508.71 × 440,262.88
  4. Step 4: Simplify right side
    1,638,340.56x = 1,081,949,855,320.42
  5. Step 5: Solve for x
    x = 1,081,949,855,320.42/1,638,340.56
  6. Step 6: Final answer
    x = 660,393.74

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Double scale
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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.