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Finding the Fourth Proportional to 507,392.32, 761,242.08 and 191,945.92

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Solution

The fourth proportional to 507,392.32, 761,242.08 and 191,945.92 is: 287,976.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,392.32 : 761,242.08 = 191,945.92 : x
  2. Step 2: Convert to fraction form
    507,392.32/761,242.08 = 191,945.92/x
  3. Step 3: Cross multiply
    507,392.32x = 761,242.08 × 191,945.92
  4. Step 4: Simplify right side
    507,392.32x = 146,117,311,388.31
  5. Step 5: Solve for x
    x = 146,117,311,388.31/507,392.32
  6. Step 6: Final answer
    x = 287,976.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.