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Finding the Fourth Proportional to 483,693.48, 724,333.50 and 305,663.40

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Solution

The fourth proportional to 483,693.48, 724,333.50 and 305,663.40 is: 457,732.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,693.48 : 724,333.50 = 305,663.40 : x
  2. Step 2: Convert to fraction form
    483,693.48/724,333.50 = 305,663.40/x
  3. Step 3: Cross multiply
    483,693.48x = 724,333.50 × 305,663.40
  4. Step 4: Simplify right side
    483,693.48x = 221,402,240,343.90
  5. Step 5: Solve for x
    x = 221,402,240,343.90/483,693.48
  6. Step 6: Final answer
    x = 457,732.53

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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.