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Finding the Fourth Proportional to 544,009.40, 815,322.90 and 262,921.40

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Solution

The fourth proportional to 544,009.40, 815,322.90 and 262,921.40 is: 394,048.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,009.40 : 815,322.90 = 262,921.40 : x
  2. Step 2: Convert to fraction form
    544,009.40/815,322.90 = 262,921.40/x
  3. Step 3: Cross multiply
    544,009.40x = 815,322.90 × 262,921.40
  4. Step 4: Simplify right side
    544,009.40x = 214,365,838,320.06
  5. Step 5: Solve for x
    x = 214,365,838,320.06/544,009.40
  6. Step 6: Final answer
    x = 394,048.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.