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Finding the Fourth Proportional to 574,977.78, 793,474.56 and 316,863.98

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Solution

The fourth proportional to 574,977.78, 793,474.56 and 316,863.98 is: 437,275.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,977.78 : 793,474.56 = 316,863.98 : x
  2. Step 2: Convert to fraction form
    574,977.78/793,474.56 = 316,863.98/x
  3. Step 3: Cross multiply
    574,977.78x = 793,474.56 × 316,863.98
  4. Step 4: Simplify right side
    574,977.78x = 251,423,507,110.35
  5. Step 5: Solve for x
    x = 251,423,507,110.35/574,977.78
  6. Step 6: Final answer
    x = 437,275.17

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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.