Home / 348,865.10-523,297.65-86,209.10

Finding the Fourth Proportional to 348,865.10, 523,297.65 and 86,209.10

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Solution

The fourth proportional to 348,865.10, 523,297.65 and 86,209.10 is: 129,313.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,865.10 : 523,297.65 = 86,209.10 : x
  2. Step 2: Convert to fraction form
    348,865.10/523,297.65 = 86,209.10/x
  3. Step 3: Cross multiply
    348,865.10x = 523,297.65 × 86,209.10
  4. Step 4: Simplify right side
    348,865.10x = 45,113,019,438.62
  5. Step 5: Solve for x
    x = 45,113,019,438.62/348,865.10
  6. Step 6: Final answer
    x = 129,313.65

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Similar ratio
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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.