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Finding the Fourth Proportional to 349,720.20, 524,580.30 and 97,000.20

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Solution

The fourth proportional to 349,720.20, 524,580.30 and 97,000.20 is: 145,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,720.20 : 524,580.30 = 97,000.20 : x
  2. Step 2: Convert to fraction form
    349,720.20/524,580.30 = 97,000.20/x
  3. Step 3: Cross multiply
    349,720.20x = 524,580.30 × 97,000.20
  4. Step 4: Simplify right side
    349,720.20x = 50,884,394,016.06
  5. Step 5: Solve for x
    x = 50,884,394,016.06/349,720.20
  6. Step 6: Final answer
    x = 145,500.30

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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.