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Finding the Fourth Proportional to 531,258.75, 733,115.72 and 289,536.14

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Solution

The fourth proportional to 531,258.75, 733,115.72 and 289,536.14 is: 399,548.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,258.75 : 733,115.72 = 289,536.14 : x
  2. Step 2: Convert to fraction form
    531,258.75/733,115.72 = 289,536.14/x
  3. Step 3: Cross multiply
    531,258.75x = 733,115.72 × 289,536.14
  4. Step 4: Simplify right side
    531,258.75x = 212,263,490,628.86
  5. Step 5: Solve for x
    x = 212,263,490,628.86/531,258.75
  6. Step 6: Final answer
    x = 399,548.23

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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.