Home / 531,509.04-733,488.21-289,789.65

Finding the Fourth Proportional to 531,509.04, 733,488.21 and 289,789.65

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Solution

The fourth proportional to 531,509.04, 733,488.21 and 289,789.65 is: 399,912.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,509.04 : 733,488.21 = 289,789.65 : x
  2. Step 2: Convert to fraction form
    531,509.04/733,488.21 = 289,789.65/x
  3. Step 3: Cross multiply
    531,509.04x = 733,488.21 × 289,789.65
  4. Step 4: Simplify right side
    531,509.04x = 212,557,291,655.03
  5. Step 5: Solve for x
    x = 212,557,291,655.03/531,509.04
  6. Step 6: Final answer
    x = 399,912.84

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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.