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Finding the Fourth Proportional to 504,642.30, 696,397.64 and 275,201.40

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Solution

The fourth proportional to 504,642.30, 696,397.64 and 275,201.40 is: 379,773.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,642.30 : 696,397.64 = 275,201.40 : x
  2. Step 2: Convert to fraction form
    504,642.30/696,397.64 = 275,201.40/x
  3. Step 3: Cross multiply
    504,642.30x = 696,397.64 × 275,201.40
  4. Step 4: Simplify right side
    504,642.30x = 191,649,602,690.71
  5. Step 5: Solve for x
    x = 191,649,602,690.71/504,642.30
  6. Step 6: Final answer
    x = 379,773.16

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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.