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Finding the Fourth Proportional to 504,429.48, 696,077.80 and 283,699.82

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Solution

The fourth proportional to 504,429.48, 696,077.80 and 283,699.82 is: 391,486.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,429.48 : 696,077.80 = 283,699.82 : x
  2. Step 2: Convert to fraction form
    504,429.48/696,077.80 = 283,699.82/x
  3. Step 3: Cross multiply
    504,429.48x = 696,077.80 × 283,699.82
  4. Step 4: Simplify right side
    504,429.48x = 197,477,148,660.82
  5. Step 5: Solve for x
    x = 197,477,148,660.82/504,429.48
  6. Step 6: Final answer
    x = 391,486.14

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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.