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Finding the Fourth Proportional to 373,734,897.60, 561,169,216.80 and 287,570,596.80

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Solution

The fourth proportional to 373,734,897.60, 561,169,216.80 and 287,570,596.80 is: 431,792,074.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,734,897.60 : 561,169,216.80 = 287,570,596.80 : x
  2. Step 2: Convert to fraction form
    373,734,897.60/561,169,216.80 = 287,570,596.80/x
  3. Step 3: Cross multiply
    373,734,897.60x = 561,169,216.80 × 287,570,596.80
  4. Step 4: Simplify right side
    373,734,897.60x = 161,375,766,580,964,576
  5. Step 5: Solve for x
    x = 161,375,766,580,964,576/373,734,897.60
  6. Step 6: Final answer
    x = 431,792,074.05

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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.