Home / 348,316.20-521,783.10-200,399.40

Finding the Fourth Proportional to 348,316.20, 521,783.10 and 200,399.40

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Solution

The fourth proportional to 348,316.20, 521,783.10 and 200,399.40 is: 300,201.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,316.20 : 521,783.10 = 200,399.40 : x
  2. Step 2: Convert to fraction form
    348,316.20/521,783.10 = 200,399.40/x
  3. Step 3: Cross multiply
    348,316.20x = 521,783.10 × 200,399.40
  4. Step 4: Simplify right side
    348,316.20x = 104,565,020,170.14
  5. Step 5: Solve for x
    x = 104,565,020,170.14/348,316.20
  6. Step 6: Final answer
    x = 300,201.43

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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.