Home / 753,563.34-1,039,936.55-409,395.83

Finding the Fourth Proportional to 753,563.34, 1,039,936.55 and 409,395.83

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Solution

The fourth proportional to 753,563.34, 1,039,936.55 and 409,395.83 is: 564,976.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,563.34 : 1,039,936.55 = 409,395.83 : x
  2. Step 2: Convert to fraction form
    753,563.34/1,039,936.55 = 409,395.83/x
  3. Step 3: Cross multiply
    753,563.34x = 1,039,936.55 × 409,395.83
  4. Step 4: Simplify right side
    753,563.34x = 425,745,679,787.93
  5. Step 5: Solve for x
    x = 425,745,679,787.93/753,563.34
  6. Step 6: Final answer
    x = 564,976.63

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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.