Home / 433,566.40-649,960.80-386,327.20

Finding the Fourth Proportional to 433,566.40, 649,960.80 and 386,327.20

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Solution

The fourth proportional to 433,566.40, 649,960.80 and 386,327.20 is: 579,144.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,566.40 : 649,960.80 = 386,327.20 : x
  2. Step 2: Convert to fraction form
    433,566.40/649,960.80 = 386,327.20/x
  3. Step 3: Cross multiply
    433,566.40x = 649,960.80 × 386,327.20
  4. Step 4: Simplify right side
    433,566.40x = 251,097,535,973.76
  5. Step 5: Solve for x
    x = 251,097,535,973.76/433,566.40
  6. Step 6: Final answer
    x = 579,144.36

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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.