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Finding the Fourth Proportional to 478,701,699.60, 718,052,549.40 and 478,701,699.60

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Solution

The fourth proportional to 478,701,699.60, 718,052,549.40 and 478,701,699.60 is: 718,052,549.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,701,699.60 : 718,052,549.40 = 478,701,699.60 : x
  2. Step 2: Convert to fraction form
    478,701,699.60/718,052,549.40 = 478,701,699.60/x
  3. Step 3: Cross multiply
    478,701,699.60x = 718,052,549.40 × 478,701,699.60
  4. Step 4: Simplify right side
    478,701,699.60x = 343,732,975,799,892,992
  5. Step 5: Solve for x
    x = 343,732,975,799,892,992/478,701,699.60
  6. Step 6: Final answer
    x = 718,052,549.40

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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.