Home / 504,890.71-696,749.13-278,536.21

Finding the Fourth Proportional to 504,890.71, 696,749.13 and 278,536.21

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Solution

The fourth proportional to 504,890.71, 696,749.13 and 278,536.21 is: 384,379.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,890.71 : 696,749.13 = 278,536.21 : x
  2. Step 2: Convert to fraction form
    504,890.71/696,749.13 = 278,536.21/x
  3. Step 3: Cross multiply
    504,890.71x = 696,749.13 × 278,536.21
  4. Step 4: Simplify right side
    504,890.71x = 194,069,861,991.00
  5. Step 5: Solve for x
    x = 194,069,861,991.00/504,890.71
  6. Step 6: Final answer
    x = 384,379.94

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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.