Home / 389,048.67-537,330.04-261,502.83

Finding the Fourth Proportional to 389,048.67, 537,330.04 and 261,502.83

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Solution

The fourth proportional to 389,048.67, 537,330.04 and 261,502.83 is: 361,171.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,048.67 : 537,330.04 = 261,502.83 : x
  2. Step 2: Convert to fraction form
    389,048.67/537,330.04 = 261,502.83/x
  3. Step 3: Cross multiply
    389,048.67x = 537,330.04 × 261,502.83
  4. Step 4: Simplify right side
    389,048.67x = 140,513,325,450.26
  5. Step 5: Solve for x
    x = 140,513,325,450.26/389,048.67
  6. Step 6: Final answer
    x = 361,171.59

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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.