Home / 1,328,911.10-1,992,005.85-653,954.30

Finding the Fourth Proportional to 1,328,911.10, 1,992,005.85 and 653,954.30

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Solution

The fourth proportional to 1,328,911.10, 1,992,005.85 and 653,954.30 is: 980,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,911.10 : 1,992,005.85 = 653,954.30 : x
  2. Step 2: Convert to fraction form
    1,328,911.10/1,992,005.85 = 653,954.30/x
  3. Step 3: Cross multiply
    1,328,911.10x = 1,992,005.85 × 653,954.30
  4. Step 4: Simplify right side
    1,328,911.10x = 1,302,680,791,232.66
  5. Step 5: Solve for x
    x = 1,302,680,791,232.66/1,328,911.10
  6. Step 6: Final answer
    x = 980,261.80

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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.