Home / 1,692,580.11-2,538,886.58-430,407.74

Finding the Fourth Proportional to 1,692,580.11, 2,538,886.58 and 430,407.74

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Solution

The fourth proportional to 1,692,580.11, 2,538,886.58 and 430,407.74 is: 645,615.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692,580.11 : 2,538,886.58 = 430,407.74 : x
  2. Step 2: Convert to fraction form
    1,692,580.11/2,538,886.58 = 430,407.74/x
  3. Step 3: Cross multiply
    1,692,580.11x = 2,538,886.58 × 430,407.74
  4. Step 4: Simplify right side
    1,692,580.11x = 1,092,756,420,167.66
  5. Step 5: Solve for x
    x = 1,092,756,420,167.66/1,692,580.11
  6. Step 6: Final answer
    x = 645,615.78

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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.