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Finding the Fourth Proportional to 342,810.81, 473,011.79 and 189,841.59

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Solution

The fourth proportional to 342,810.81, 473,011.79 and 189,841.59 is: 261,944.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,810.81 : 473,011.79 = 189,841.59 : x
  2. Step 2: Convert to fraction form
    342,810.81/473,011.79 = 189,841.59/x
  3. Step 3: Cross multiply
    342,810.81x = 473,011.79 × 189,841.59
  4. Step 4: Simplify right side
    342,810.81x = 89,797,309,353.14
  5. Step 5: Solve for x
    x = 89,797,309,353.14/342,810.81
  6. Step 6: Final answer
    x = 261,944.22

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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.