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Finding the Fourth Proportional to 353,457.72, 487,757.01 and 192,313.38

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Solution

The fourth proportional to 353,457.72, 487,757.01 and 192,313.38 is: 265,384.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,457.72 : 487,757.01 = 192,313.38 : x
  2. Step 2: Convert to fraction form
    353,457.72/487,757.01 = 192,313.38/x
  3. Step 3: Cross multiply
    353,457.72x = 487,757.01 × 192,313.38
  4. Step 4: Simplify right side
    353,457.72x = 93,802,199,211.79
  5. Step 5: Solve for x
    x = 93,802,199,211.79/353,457.72
  6. Step 6: Final answer
    x = 265,384.50

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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.