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Finding the Fourth Proportional to 508,448.79, 762,923.48 and 359,645.31

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Solution

The fourth proportional to 508,448.79, 762,923.48 and 359,645.31 is: 539,645.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,448.79 : 762,923.48 = 359,645.31 : x
  2. Step 2: Convert to fraction form
    508,448.79/762,923.48 = 359,645.31/x
  3. Step 3: Cross multiply
    508,448.79x = 762,923.48 × 359,645.31
  4. Step 4: Simplify right side
    508,448.79x = 274,381,849,672.65
  5. Step 5: Solve for x
    x = 274,381,849,672.65/508,448.79
  6. Step 6: Final answer
    x = 539,645.00

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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.