Home / 419,926.56-579,142.14-354,834.28

Finding the Fourth Proportional to 419,926.56, 579,142.14 and 354,834.28

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Solution

The fourth proportional to 419,926.56, 579,142.14 and 354,834.28 is: 489,370.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,926.56 : 579,142.14 = 354,834.28 : x
  2. Step 2: Convert to fraction form
    419,926.56/579,142.14 = 354,834.28/x
  3. Step 3: Cross multiply
    419,926.56x = 579,142.14 × 354,834.28
  4. Step 4: Simplify right side
    419,926.56x = 205,499,484,264.56
  5. Step 5: Solve for x
    x = 205,499,484,264.56/419,926.56
  6. Step 6: Final answer
    x = 489,370.06

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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.