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Finding the Fourth Proportional to 569,624.33, 786,422.67 and 355,055.03

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Solution

The fourth proportional to 569,624.33, 786,422.67 and 355,055.03 is: 490,188.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,624.33 : 786,422.67 = 355,055.03 : x
  2. Step 2: Convert to fraction form
    569,624.33/786,422.67 = 355,055.03/x
  3. Step 3: Cross multiply
    569,624.33x = 786,422.67 × 355,055.03
  4. Step 4: Simplify right side
    569,624.33x = 279,223,324,689.53
  5. Step 5: Solve for x
    x = 279,223,324,689.53/569,624.33
  6. Step 6: Final answer
    x = 490,188.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.