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Finding the Fourth Proportional to 478,839,670.60, 718,259,505.90 and 478,839,670.60

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Solution

The fourth proportional to 478,839,670.60, 718,259,505.90 and 478,839,670.60 is: 718,259,505.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,839,670.60 : 718,259,505.90 = 478,839,670.60 : x
  2. Step 2: Convert to fraction form
    478,839,670.60/718,259,505.90 = 478,839,670.60/x
  3. Step 3: Cross multiply
    478,839,670.60x = 718,259,505.90 × 478,839,670.60
  4. Step 4: Simplify right side
    478,839,670.60x = 343,931,145,210,474,752
  5. Step 5: Solve for x
    x = 343,931,145,210,474,752/478,839,670.60
  6. Step 6: Final answer
    x = 718,259,505.90

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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.