Home / 694,154.18-957,926.10-388,226.90

Finding the Fourth Proportional to 694,154.18, 957,926.10 and 388,226.90

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Solution

The fourth proportional to 694,154.18, 957,926.10 and 388,226.90 is: 535,749.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,154.18 : 957,926.10 = 388,226.90 : x
  2. Step 2: Convert to fraction form
    694,154.18/957,926.10 = 388,226.90/x
  3. Step 3: Cross multiply
    694,154.18x = 957,926.10 × 388,226.90
  4. Step 4: Simplify right side
    694,154.18x = 371,892,680,232.09
  5. Step 5: Solve for x
    x = 371,892,680,232.09/694,154.18
  6. Step 6: Final answer
    x = 535,749.39

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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.