Home / 1,287,466.17-1,931,199.25-686,606.95

Finding the Fourth Proportional to 1,287,466.17, 1,931,199.25 and 686,606.95

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Solution

The fourth proportional to 1,287,466.17, 1,931,199.25 and 686,606.95 is: 1,029,910.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,466.17 : 1,931,199.25 = 686,606.95 : x
  2. Step 2: Convert to fraction form
    1,287,466.17/1,931,199.25 = 686,606.95/x
  3. Step 3: Cross multiply
    1,287,466.17x = 1,931,199.25 × 686,606.95
  4. Step 4: Simplify right side
    1,287,466.17x = 1,325,974,826,884.79
  5. Step 5: Solve for x
    x = 1,325,974,826,884.79/1,287,466.17
  6. Step 6: Final answer
    x = 1,029,910.42

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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.