Home / 686,072.90-1,029,111.60-173,737.76

Finding the Fourth Proportional to 686,072.90, 1,029,111.60 and 173,737.76

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Solution

The fourth proportional to 686,072.90, 1,029,111.60 and 173,737.76 is: 260,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,072.90 : 1,029,111.60 = 173,737.76 : x
  2. Step 2: Convert to fraction form
    686,072.90/1,029,111.60 = 173,737.76/x
  3. Step 3: Cross multiply
    686,072.90x = 1,029,111.60 × 173,737.76
  4. Step 4: Simplify right side
    686,072.90x = 178,795,539,028.46
  5. Step 5: Solve for x
    x = 178,795,539,028.46/686,072.90
  6. Step 6: Final answer
    x = 260,607.20

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1.5x scale

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.