Home / 938,019.42-1,406,329.29-439,266.78

Finding the Fourth Proportional to 938,019.42, 1,406,329.29 and 439,266.78

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Solution

The fourth proportional to 938,019.42, 1,406,329.29 and 439,266.78 is: 658,572.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,019.42 : 1,406,329.29 = 439,266.78 : x
  2. Step 2: Convert to fraction form
    938,019.42/1,406,329.29 = 439,266.78/x
  3. Step 3: Cross multiply
    938,019.42x = 1,406,329.29 × 439,266.78
  4. Step 4: Simplify right side
    938,019.42x = 617,753,738,837.99
  5. Step 5: Solve for x
    x = 617,753,738,837.99/938,019.42
  6. Step 6: Final answer
    x = 658,572.44

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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.