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Finding the Fourth Proportional to 667,154,083.92, 920,671,041.90 and 365,738,857.08

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Solution

The fourth proportional to 667,154,083.92, 920,671,041.90 and 365,738,857.08 is: 504,718,748.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,154,083.92 : 920,671,041.90 = 365,738,857.08 : x
  2. Step 2: Convert to fraction form
    667,154,083.92/920,671,041.90 = 365,738,857.08/x
  3. Step 3: Cross multiply
    667,154,083.92x = 920,671,041.90 × 365,738,857.08
  4. Step 4: Simplify right side
    667,154,083.92x = 336,725,174,611,158,784
  5. Step 5: Solve for x
    x = 336,725,174,611,158,784/667,154,083.92
  6. Step 6: Final answer
    x = 504,718,748.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.