Home / 433,571.40-649,968.30-386,332.20

Finding the Fourth Proportional to 433,571.40, 649,968.30 and 386,332.20

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Solution

The fourth proportional to 433,571.40, 649,968.30 and 386,332.20 is: 579,151.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,571.40 : 649,968.30 = 386,332.20 : x
  2. Step 2: Convert to fraction form
    433,571.40/649,968.30 = 386,332.20/x
  3. Step 3: Cross multiply
    433,571.40x = 649,968.30 × 386,332.20
  4. Step 4: Simplify right side
    433,571.40x = 251,103,683,269.26
  5. Step 5: Solve for x
    x = 251,103,683,269.26/433,571.40
  6. Step 6: Final answer
    x = 579,151.86

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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.