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Finding the Fourth Proportional to 578,092.32, 797,743.44 and 316,445.76

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Solution

The fourth proportional to 578,092.32, 797,743.44 and 316,445.76 is: 436,682.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,092.32 : 797,743.44 = 316,445.76 : x
  2. Step 2: Convert to fraction form
    578,092.32/797,743.44 = 316,445.76/x
  3. Step 3: Cross multiply
    578,092.32x = 797,743.44 × 316,445.76
  4. Step 4: Simplify right side
    578,092.32x = 252,442,529,155.81
  5. Step 5: Solve for x
    x = 252,442,529,155.81/578,092.32
  6. Step 6: Final answer
    x = 436,682.03

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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.