Home / 1,918,687.60-2,877,068.66-638,844.26

Finding the Fourth Proportional to 1,918,687.60, 2,877,068.66 and 638,844.26

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Solution

The fourth proportional to 1,918,687.60, 2,877,068.66 and 638,844.26 is: 957,945.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,687.60 : 2,877,068.66 = 638,844.26 : x
  2. Step 2: Convert to fraction form
    1,918,687.60/2,877,068.66 = 638,844.26/x
  3. Step 3: Cross multiply
    1,918,687.60x = 2,877,068.66 × 638,844.26
  4. Step 4: Simplify right side
    1,918,687.60x = 1,837,998,805,461.01
  5. Step 5: Solve for x
    x = 1,837,998,805,461.01/1,918,687.60
  6. Step 6: Final answer
    x = 957,945.84

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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.