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Finding the Fourth Proportional to 577,649.67, 797,095.19 and 319,485.59

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Solution

The fourth proportional to 577,649.67, 797,095.19 and 319,485.59 is: 440,856.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,649.67 : 797,095.19 = 319,485.59 : x
  2. Step 2: Convert to fraction form
    577,649.67/797,095.19 = 319,485.59/x
  3. Step 3: Cross multiply
    577,649.67x = 797,095.19 × 319,485.59
  4. Step 4: Simplify right side
    577,649.67x = 254,660,427,063.31
  5. Step 5: Solve for x
    x = 254,660,427,063.31/577,649.67
  6. Step 6: Final answer
    x = 440,856.18

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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.