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Finding the Fourth Proportional to 629,859,223.40, 944,788,835.10 and 323,749,207.40

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Solution

The fourth proportional to 629,859,223.40, 944,788,835.10 and 323,749,207.40 is: 485,623,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,859,223.40 : 944,788,835.10 = 323,749,207.40 : x
  2. Step 2: Convert to fraction form
    629,859,223.40/944,788,835.10 = 323,749,207.40/x
  3. Step 3: Cross multiply
    629,859,223.40x = 944,788,835.10 × 323,749,207.40
  4. Step 4: Simplify right side
    629,859,223.40x = 305,874,636,523,994,304
  5. Step 5: Solve for x
    x = 305,874,636,523,994,304/629,859,223.40
  6. Step 6: Final answer
    x = 485,623,811.10

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Double scale
Find fourth proportional to 629,859,224.40, 944,788,836.60 and 323,749,208.40
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.