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Finding the Fourth Proportional to 520,036.58, 717,666.81 and 293,696.66

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Solution

The fourth proportional to 520,036.58, 717,666.81 and 293,696.66 is: 405,310.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,036.58 : 717,666.81 = 293,696.66 : x
  2. Step 2: Convert to fraction form
    520,036.58/717,666.81 = 293,696.66/x
  3. Step 3: Cross multiply
    520,036.58x = 717,666.81 × 293,696.66
  4. Step 4: Simplify right side
    520,036.58x = 210,776,345,089.86
  5. Step 5: Solve for x
    x = 210,776,345,089.86/520,036.58
  6. Step 6: Final answer
    x = 405,310.61

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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.