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Finding the Fourth Proportional to 616,491.18, 850,741.83 and 344,561.34

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Solution

The fourth proportional to 616,491.18, 850,741.83 and 344,561.34 is: 475,485.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,491.18 : 850,741.83 = 344,561.34 : x
  2. Step 2: Convert to fraction form
    616,491.18/850,741.83 = 344,561.34/x
  3. Step 3: Cross multiply
    616,491.18x = 850,741.83 × 344,561.34
  4. Step 4: Simplify right side
    616,491.18x = 293,132,744,938.85
  5. Step 5: Solve for x
    x = 293,132,744,938.85/616,491.18
  6. Step 6: Final answer
    x = 475,485.71

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1.5x scale

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.