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Finding the Fourth Proportional to 618,013.40, 927,364.55 and 333,697.93

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Solution

The fourth proportional to 618,013.40, 927,364.55 and 333,697.93 is: 500,732.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,013.40 : 927,364.55 = 333,697.93 : x
  2. Step 2: Convert to fraction form
    618,013.40/927,364.55 = 333,697.93/x
  3. Step 3: Cross multiply
    618,013.40x = 927,364.55 × 333,697.93
  4. Step 4: Simplify right side
    618,013.40x = 309,459,626,703.48
  5. Step 5: Solve for x
    x = 309,459,626,703.48/618,013.40
  6. Step 6: Final answer
    x = 500,732.88

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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.