Home / 353,376,008.30-530,064,012.45-200,321,000.30

Finding the Fourth Proportional to 353,376,008.30, 530,064,012.45 and 200,321,000.30

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Solution

The fourth proportional to 353,376,008.30, 530,064,012.45 and 200,321,000.30 is: 300,481,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,376,008.30 : 530,064,012.45 = 200,321,000.30 : x
  2. Step 2: Convert to fraction form
    353,376,008.30/530,064,012.45 = 200,321,000.30/x
  3. Step 3: Cross multiply
    353,376,008.30x = 530,064,012.45 × 200,321,000.30
  4. Step 4: Simplify right side
    353,376,008.30x = 106,182,953,197,015,664
  5. Step 5: Solve for x
    x = 106,182,953,197,015,664/353,376,008.30
  6. Step 6: Final answer
    x = 300,481,500.45

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Double scale
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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.