Home / 443,023.20-611,159.10-289,993.98

Finding the Fourth Proportional to 443,023.20, 611,159.10 and 289,993.98

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Solution

The fourth proportional to 443,023.20, 611,159.10 and 289,993.98 is: 400,052.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,023.20 : 611,159.10 = 289,993.98 : x
  2. Step 2: Convert to fraction form
    443,023.20/611,159.10 = 289,993.98/x
  3. Step 3: Cross multiply
    443,023.20x = 611,159.10 × 289,993.98
  4. Step 4: Simplify right side
    443,023.20x = 177,232,459,822.22
  5. Step 5: Solve for x
    x = 177,232,459,822.22/443,023.20
  6. Step 6: Final answer
    x = 400,052.32

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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.