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Finding the Fourth Proportional to 316,445.23, 436,672.50 and 180,484.97

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Solution

The fourth proportional to 316,445.23, 436,672.50 and 180,484.97 is: 249,056.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,445.23 : 436,672.50 = 180,484.97 : x
  2. Step 2: Convert to fraction form
    316,445.23/436,672.50 = 180,484.97/x
  3. Step 3: Cross multiply
    316,445.23x = 436,672.50 × 180,484.97
  4. Step 4: Simplify right side
    316,445.23x = 78,812,823,062.33
  5. Step 5: Solve for x
    x = 78,812,823,062.33/316,445.23
  6. Step 6: Final answer
    x = 249,056.76

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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.