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Finding the Fourth Proportional to 316,338.96, 436,547.30 and 173,098.96

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Solution

The fourth proportional to 316,338.96, 436,547.30 and 173,098.96 is: 238,876.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,338.96 : 436,547.30 = 173,098.96 : x
  2. Step 2: Convert to fraction form
    316,338.96/436,547.30 = 173,098.96/x
  3. Step 3: Cross multiply
    316,338.96x = 436,547.30 × 173,098.96
  4. Step 4: Simplify right side
    316,338.96x = 75,565,883,620.81
  5. Step 5: Solve for x
    x = 75,565,883,620.81/316,338.96
  6. Step 6: Final answer
    x = 238,876.31

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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.