Home / 1,638,713.40-2,261,434.35-913,607.17

Finding the Fourth Proportional to 1,638,713.40, 2,261,434.35 and 913,607.17

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Solution

The fourth proportional to 1,638,713.40, 2,261,434.35 and 913,607.17 is: 1,260,783.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,713.40 : 2,261,434.35 = 913,607.17 : x
  2. Step 2: Convert to fraction form
    1,638,713.40/2,261,434.35 = 913,607.17/x
  3. Step 3: Cross multiply
    1,638,713.40x = 2,261,434.35 × 913,607.17
  4. Step 4: Simplify right side
    1,638,713.40x = 2,066,062,636,644.29
  5. Step 5: Solve for x
    x = 2,066,062,636,644.29/1,638,713.40
  6. Step 6: Final answer
    x = 1,260,783.39

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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.