Home / 1,638,400.30-2,261,068.94-913,253.27

Finding the Fourth Proportional to 1,638,400.30, 2,261,068.94 and 913,253.27

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Solution

The fourth proportional to 1,638,400.30, 2,261,068.94 and 913,253.27 is: 1,260,332.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,400.30 : 2,261,068.94 = 913,253.27 : x
  2. Step 2: Convert to fraction form
    1,638,400.30/2,261,068.94 = 913,253.27/x
  3. Step 3: Cross multiply
    1,638,400.30x = 2,261,068.94 × 913,253.27
  4. Step 4: Simplify right side
    1,638,400.30x = 2,064,928,594,128.22
  5. Step 5: Solve for x
    x = 2,064,928,594,128.22/1,638,400.30
  6. Step 6: Final answer
    x = 1,260,332.17

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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.