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Finding the Fourth Proportional to 573,060,605.20, 859,590,907.80 and 397,708,694.80

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Solution

The fourth proportional to 573,060,605.20, 859,590,907.80 and 397,708,694.80 is: 596,563,042.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,060,605.20 : 859,590,907.80 = 397,708,694.80 : x
  2. Step 2: Convert to fraction form
    573,060,605.20/859,590,907.80 = 397,708,694.80/x
  3. Step 3: Cross multiply
    573,060,605.20x = 859,590,907.80 × 397,708,694.80
  4. Step 4: Simplify right side
    573,060,605.20x = 341,866,778,003,085,120
  5. Step 5: Solve for x
    x = 341,866,778,003,085,120/573,060,605.20
  6. Step 6: Final answer
    x = 596,563,042.20

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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.