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Finding the Fourth Proportional to 527,837.92, 728,753.16 and 346,870.96

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Solution

The fourth proportional to 527,837.92, 728,753.16 and 346,870.96 is: 478,903.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,837.92 : 728,753.16 = 346,870.96 : x
  2. Step 2: Convert to fraction form
    527,837.92/728,753.16 = 346,870.96/x
  3. Step 3: Cross multiply
    527,837.92x = 728,753.16 × 346,870.96
  4. Step 4: Simplify right side
    527,837.92x = 252,783,308,212.23
  5. Step 5: Solve for x
    x = 252,783,308,212.23/527,837.92
  6. Step 6: Final answer
    x = 478,903.27

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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.