Home / 1,900,405.60-2,852,221.20-779,279.20

Finding the Fourth Proportional to 1,900,405.60, 2,852,221.20 and 779,279.20

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Solution

The fourth proportional to 1,900,405.60, 2,852,221.20 and 779,279.20 is: 1,169,580.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,900,405.60 : 2,852,221.20 = 779,279.20 : x
  2. Step 2: Convert to fraction form
    1,900,405.60/2,852,221.20 = 779,279.20/x
  3. Step 3: Cross multiply
    1,900,405.60x = 2,852,221.20 × 779,279.20
  4. Step 4: Simplify right side
    1,900,405.60x = 2,222,676,654,959.04
  5. Step 5: Solve for x
    x = 2,222,676,654,959.04/1,900,405.60
  6. Step 6: Final answer
    x = 1,169,580.14

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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.