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Finding the Fourth Proportional to 544,527.30, 751,337.56 and 318,129.06

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Solution

The fourth proportional to 544,527.30, 751,337.56 and 318,129.06 is: 438,953.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,527.30 : 751,337.56 = 318,129.06 : x
  2. Step 2: Convert to fraction form
    544,527.30/751,337.56 = 318,129.06/x
  3. Step 3: Cross multiply
    544,527.30x = 751,337.56 × 318,129.06
  4. Step 4: Simplify right side
    544,527.30x = 239,022,311,705.49
  5. Step 5: Solve for x
    x = 239,022,311,705.49/544,527.30
  6. Step 6: Final answer
    x = 438,953.77

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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.