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Finding the Fourth Proportional to 618,360.51, 925,966.02 and 407,358.75

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Solution

The fourth proportional to 618,360.51, 925,966.02 and 407,358.75 is: 610,000.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,360.51 : 925,966.02 = 407,358.75 : x
  2. Step 2: Convert to fraction form
    618,360.51/925,966.02 = 407,358.75/x
  3. Step 3: Cross multiply
    618,360.51x = 925,966.02 × 407,358.75
  4. Step 4: Simplify right side
    618,360.51x = 377,200,360,449.68
  5. Step 5: Solve for x
    x = 377,200,360,449.68/618,360.51
  6. Step 6: Final answer
    x = 610,000.73

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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.