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Finding the Fourth Proportional to 374,975,978.40, 562,463,967.60 and 336,806,704.80

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Solution

The fourth proportional to 374,975,978.40, 562,463,967.60 and 336,806,704.80 is: 505,210,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,975,978.40 : 562,463,967.60 = 336,806,704.80 : x
  2. Step 2: Convert to fraction form
    374,975,978.40/562,463,967.60 = 336,806,704.80/x
  3. Step 3: Cross multiply
    374,975,978.40x = 562,463,967.60 × 336,806,704.80
  4. Step 4: Simplify right side
    374,975,978.40x = 189,441,635,496,089,984
  5. Step 5: Solve for x
    x = 189,441,635,496,089,984/374,975,978.40
  6. Step 6: Final answer
    x = 505,210,057.20

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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.