Home / 691,013.38-953,599.38-385,083.07

Finding the Fourth Proportional to 691,013.38, 953,599.38 and 385,083.07

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Solution

The fourth proportional to 691,013.38, 953,599.38 and 385,083.07 is: 531,415.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,013.38 : 953,599.38 = 385,083.07 : x
  2. Step 2: Convert to fraction form
    691,013.38/953,599.38 = 385,083.07/x
  3. Step 3: Cross multiply
    691,013.38x = 953,599.38 × 385,083.07
  4. Step 4: Simplify right side
    691,013.38x = 367,214,976,800.50
  5. Step 5: Solve for x
    x = 367,214,976,800.50/691,013.38
  6. Step 6: Final answer
    x = 531,415.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.