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Finding the Fourth Proportional to 353,313.69, 487,558.87 and 192,168.51

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Solution

The fourth proportional to 353,313.69, 487,558.87 and 192,168.51 is: 265,184.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,313.69 : 487,558.87 = 192,168.51 : x
  2. Step 2: Convert to fraction form
    353,313.69/487,558.87 = 192,168.51/x
  3. Step 3: Cross multiply
    353,313.69x = 487,558.87 × 192,168.51
  4. Step 4: Simplify right side
    353,313.69x = 93,693,461,585.18
  5. Step 5: Solve for x
    x = 93,693,461,585.18/353,313.69
  6. Step 6: Final answer
    x = 265,184.92

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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.