Home / 739,309.28-1,020,246.84-399,777.53

Finding the Fourth Proportional to 739,309.28, 1,020,246.84 and 399,777.53

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Solution

The fourth proportional to 739,309.28, 1,020,246.84 and 399,777.53 is: 551,693.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,309.28 : 1,020,246.84 = 399,777.53 : x
  2. Step 2: Convert to fraction form
    739,309.28/1,020,246.84 = 399,777.53/x
  3. Step 3: Cross multiply
    739,309.28x = 1,020,246.84 × 399,777.53
  4. Step 4: Simplify right side
    739,309.28x = 407,871,756,584.27
  5. Step 5: Solve for x
    x = 407,871,756,584.27/739,309.28
  6. Step 6: Final answer
    x = 551,693.01

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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.