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Finding the Fourth Proportional to 477,131,012.70, 715,696,519.05 and 354,687,006.30

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Solution

The fourth proportional to 477,131,012.70, 715,696,519.05 and 354,687,006.30 is: 532,030,509.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,131,012.70 : 715,696,519.05 = 354,687,006.30 : x
  2. Step 2: Convert to fraction form
    477,131,012.70/715,696,519.05 = 354,687,006.30/x
  3. Step 3: Cross multiply
    477,131,012.70x = 715,696,519.05 × 354,687,006.30
  4. Step 4: Simplify right side
    477,131,012.70x = 253,848,255,761,175,424
  5. Step 5: Solve for x
    x = 253,848,255,761,175,424/477,131,012.70
  6. Step 6: Final answer
    x = 532,030,509.45

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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.