Home / 1,277,097.40-1,915,905.30-435,734.20

Finding the Fourth Proportional to 1,277,097.40, 1,915,905.30 and 435,734.20

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Solution

The fourth proportional to 1,277,097.40, 1,915,905.30 and 435,734.20 is: 653,689.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,097.40 : 1,915,905.30 = 435,734.20 : x
  2. Step 2: Convert to fraction form
    1,277,097.40/1,915,905.30 = 435,734.20/x
  3. Step 3: Cross multiply
    1,277,097.40x = 1,915,905.30 × 435,734.20
  4. Step 4: Simplify right side
    1,277,097.40x = 834,825,463,171.26
  5. Step 5: Solve for x
    x = 834,825,463,171.26/1,277,097.40
  6. Step 6: Final answer
    x = 653,689.74

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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.