Home / 813,947.02-1,123,304.46-451,405.60

Finding the Fourth Proportional to 813,947.02, 1,123,304.46 and 451,405.60

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Solution

The fourth proportional to 813,947.02, 1,123,304.46 and 451,405.60 is: 622,971.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,947.02 : 1,123,304.46 = 451,405.60 : x
  2. Step 2: Convert to fraction form
    813,947.02/1,123,304.46 = 451,405.60/x
  3. Step 3: Cross multiply
    813,947.02x = 1,123,304.46 × 451,405.60
  4. Step 4: Simplify right side
    813,947.02x = 507,065,923,748.98
  5. Step 5: Solve for x
    x = 507,065,923,748.98/813,947.02
  6. Step 6: Final answer
    x = 622,971.66

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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.