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Finding the Fourth Proportional to 404,908,303.64, 558,773,997.90 and 219,269,639.48

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Solution

The fourth proportional to 404,908,303.64, 558,773,997.90 and 219,269,639.48 is: 302,592,394.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,908,303.64 : 558,773,997.90 = 219,269,639.48 : x
  2. Step 2: Convert to fraction form
    404,908,303.64/558,773,997.90 = 219,269,639.48/x
  3. Step 3: Cross multiply
    404,908,303.64x = 558,773,997.90 × 219,269,639.48
  4. Step 4: Simplify right side
    404,908,303.64x = 122,522,173,070,331,264
  5. Step 5: Solve for x
    x = 122,522,173,070,331,264/404,908,303.64
  6. Step 6: Final answer
    x = 302,592,394.30

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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.