Home / 719,782.20-1,079,673.30-607,807.80

Finding the Fourth Proportional to 719,782.20, 1,079,673.30 and 607,807.80

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Solution

The fourth proportional to 719,782.20, 1,079,673.30 and 607,807.80 is: 911,711.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,782.20 : 1,079,673.30 = 607,807.80 : x
  2. Step 2: Convert to fraction form
    719,782.20/1,079,673.30 = 607,807.80/x
  3. Step 3: Cross multiply
    719,782.20x = 1,079,673.30 × 607,807.80
  4. Step 4: Simplify right side
    719,782.20x = 656,233,853,191.74
  5. Step 5: Solve for x
    x = 656,233,853,191.74/719,782.20
  6. Step 6: Final answer
    x = 911,711.70

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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.