Home / 525,982,609.80-788,973,914.70-219,494,680.20

Finding the Fourth Proportional to 525,982,609.80, 788,973,914.70 and 219,494,680.20

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Solution

The fourth proportional to 525,982,609.80, 788,973,914.70 and 219,494,680.20 is: 329,242,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,982,609.80 : 788,973,914.70 = 219,494,680.20 : x
  2. Step 2: Convert to fraction form
    525,982,609.80/788,973,914.70 = 219,494,680.20/x
  3. Step 3: Cross multiply
    525,982,609.80x = 788,973,914.70 × 219,494,680.20
  4. Step 4: Simplify right side
    525,982,609.80x = 173,175,577,093,218,592
  5. Step 5: Solve for x
    x = 173,175,577,093,218,592/525,982,609.80
  6. Step 6: Final answer
    x = 329,242,020.30

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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.