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Finding the Fourth Proportional to 504,407.76, 696,131.80 and 376,861.92

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Solution

The fourth proportional to 504,407.76, 696,131.80 and 376,861.92 is: 520,106.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,407.76 : 696,131.80 = 376,861.92 : x
  2. Step 2: Convert to fraction form
    504,407.76/696,131.80 = 376,861.92/x
  3. Step 3: Cross multiply
    504,407.76x = 696,131.80 × 376,861.92
  4. Step 4: Simplify right side
    504,407.76x = 262,345,566,721.06
  5. Step 5: Solve for x
    x = 262,345,566,721.06/504,407.76
  6. Step 6: Final answer
    x = 520,106.13

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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.