Home / 385,352.24-531,967.92-289,895.36

Finding the Fourth Proportional to 385,352.24, 531,967.92 and 289,895.36

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Solution

The fourth proportional to 385,352.24, 531,967.92 and 289,895.36 is: 400,192.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,352.24 : 531,967.92 = 289,895.36 : x
  2. Step 2: Convert to fraction form
    385,352.24/531,967.92 = 289,895.36/x
  3. Step 3: Cross multiply
    385,352.24x = 531,967.92 × 289,895.36
  4. Step 4: Simplify right side
    385,352.24x = 154,215,031,676.85
  5. Step 5: Solve for x
    x = 154,215,031,676.85/385,352.24
  6. Step 6: Final answer
    x = 400,192.38

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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.