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Finding the Fourth Proportional to 289,875.96, 400,032.96 and 175,138.68

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Solution

The fourth proportional to 289,875.96, 400,032.96 and 175,138.68 is: 241,693.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,875.96 : 400,032.96 = 175,138.68 : x
  2. Step 2: Convert to fraction form
    289,875.96/400,032.96 = 175,138.68/x
  3. Step 3: Cross multiply
    289,875.96x = 400,032.96 × 175,138.68
  4. Step 4: Simplify right side
    289,875.96x = 70,061,244,570.89
  5. Step 5: Solve for x
    x = 70,061,244,570.89/289,875.96
  6. Step 6: Final answer
    x = 241,693.88

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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.