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Finding the Fourth Proportional to 292,391.39, 403,457.17 and 163,313.96

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Solution

The fourth proportional to 292,391.39, 403,457.17 and 163,313.96 is: 225,349.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,391.39 : 403,457.17 = 163,313.96 : x
  2. Step 2: Convert to fraction form
    292,391.39/403,457.17 = 163,313.96/x
  3. Step 3: Cross multiply
    292,391.39x = 403,457.17 × 163,313.96
  4. Step 4: Simplify right side
    292,391.39x = 65,890,186,003.74
  5. Step 5: Solve for x
    x = 65,890,186,003.74/292,391.39
  6. Step 6: Final answer
    x = 225,349.27

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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.