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Finding the Fourth Proportional to 554,978,009.45, 832,194,608.93 and 274,534,901.57

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Solution

The fourth proportional to 554,978,009.45, 832,194,608.93 and 274,534,901.57 is: 411,667,599.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,978,009.45 : 832,194,608.93 = 274,534,901.57 : x
  2. Step 2: Convert to fraction form
    554,978,009.45/832,194,608.93 = 274,534,901.57/x
  3. Step 3: Cross multiply
    554,978,009.45x = 832,194,608.93 × 274,534,901.57
  4. Step 4: Simplify right side
    554,978,009.45x = 228,466,465,044,148,544
  5. Step 5: Solve for x
    x = 228,466,465,044,148,544/554,978,009.45
  6. Step 6: Final answer
    x = 411,667,599.72

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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.