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Finding the Fourth Proportional to 559,876,808.40, 839,815,212.60 and 196,323,925.20

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Solution

The fourth proportional to 559,876,808.40, 839,815,212.60 and 196,323,925.20 is: 294,485,887.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,876,808.40 : 839,815,212.60 = 196,323,925.20 : x
  2. Step 2: Convert to fraction form
    559,876,808.40/839,815,212.60 = 196,323,925.20/x
  3. Step 3: Cross multiply
    559,876,808.40x = 839,815,212.60 × 196,323,925.20
  4. Step 4: Simplify right side
    559,876,808.40x = 164,875,818,980,304,480
  5. Step 5: Solve for x
    x = 164,875,818,980,304,480/559,876,808.40
  6. Step 6: Final answer
    x = 294,485,887.80

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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.