Home / 719,685.45-1,079,901.79-293,533.92

Finding the Fourth Proportional to 719,685.45, 1,079,901.79 and 293,533.92

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Solution

The fourth proportional to 719,685.45, 1,079,901.79 and 293,533.92 is: 440,453.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,685.45 : 1,079,901.79 = 293,533.92 : x
  2. Step 2: Convert to fraction form
    719,685.45/1,079,901.79 = 293,533.92/x
  3. Step 3: Cross multiply
    719,685.45x = 1,079,901.79 × 293,533.92
  4. Step 4: Simplify right side
    719,685.45x = 316,987,810,050.27
  5. Step 5: Solve for x
    x = 316,987,810,050.27/719,685.45
  6. Step 6: Final answer
    x = 440,453.27

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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.