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Finding the Fourth Proportional to 559,876,824.80, 839,815,237.20 and 253,766,808.80

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Solution

The fourth proportional to 559,876,824.80, 839,815,237.20 and 253,766,808.80 is: 380,650,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,876,824.80 : 839,815,237.20 = 253,766,808.80 : x
  2. Step 2: Convert to fraction form
    559,876,824.80/839,815,237.20 = 253,766,808.80/x
  3. Step 3: Cross multiply
    559,876,824.80x = 839,815,237.20 × 253,766,808.80
  4. Step 4: Simplify right side
    559,876,824.80x = 213,117,232,725,859,072
  5. Step 5: Solve for x
    x = 213,117,232,725,859,072/559,876,824.80
  6. Step 6: Final answer
    x = 380,650,213.20

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Double scale
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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.