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Finding the Fourth Proportional to 316,668.92, 437,003.76 and 171,476.28

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Solution

The fourth proportional to 316,668.92, 437,003.76 and 171,476.28 is: 236,637.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,668.92 : 437,003.76 = 171,476.28 : x
  2. Step 2: Convert to fraction form
    316,668.92/437,003.76 = 171,476.28/x
  3. Step 3: Cross multiply
    316,668.92x = 437,003.76 × 171,476.28
  4. Step 4: Simplify right side
    316,668.92x = 74,935,779,110.81
  5. Step 5: Solve for x
    x = 74,935,779,110.81/316,668.92
  6. Step 6: Final answer
    x = 236,637.62

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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.