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Finding the Fourth Proportional to 504,109.53, 695,686.91 and 289,288.89

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Solution

The fourth proportional to 504,109.53, 695,686.91 and 289,288.89 is: 399,227.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,109.53 : 695,686.91 = 289,288.89 : x
  2. Step 2: Convert to fraction form
    504,109.53/695,686.91 = 289,288.89/x
  3. Step 3: Cross multiply
    504,109.53x = 695,686.91 × 289,288.89
  4. Step 4: Simplify right side
    504,109.53x = 201,254,492,534.99
  5. Step 5: Solve for x
    x = 201,254,492,534.99/504,109.53
  6. Step 6: Final answer
    x = 399,227.71

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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.