Home / 1,287,466.29-1,931,199.44-686,607.08

Finding the Fourth Proportional to 1,287,466.29, 1,931,199.44 and 686,607.08

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Solution

The fourth proportional to 1,287,466.29, 1,931,199.44 and 686,607.08 is: 1,029,910.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,466.29 : 1,931,199.44 = 686,607.08 : x
  2. Step 2: Convert to fraction form
    1,287,466.29/1,931,199.44 = 686,607.08/x
  3. Step 3: Cross multiply
    1,287,466.29x = 1,931,199.44 × 686,607.08
  4. Step 4: Simplify right side
    1,287,466.29x = 1,325,975,195,307.00
  5. Step 5: Solve for x
    x = 1,325,975,195,307.00/1,287,466.29
  6. Step 6: Final answer
    x = 1,029,910.61

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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.