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Finding the Fourth Proportional to 590,458.29, 887,218.34 and 515,779.53

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Solution

The fourth proportional to 590,458.29, 887,218.34 and 515,779.53 is: 775,006.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,458.29 : 887,218.34 = 515,779.53 : x
  2. Step 2: Convert to fraction form
    590,458.29/887,218.34 = 515,779.53/x
  3. Step 3: Cross multiply
    590,458.29x = 887,218.34 × 515,779.53
  4. Step 4: Simplify right side
    590,458.29x = 457,609,055,833.68
  5. Step 5: Solve for x
    x = 457,609,055,833.68/590,458.29
  6. Step 6: Final answer
    x = 775,006.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.