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Finding the Fourth Proportional to 569,051.71, 784,379.27 and 385,232.31

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Solution

The fourth proportional to 569,051.71, 784,379.27 and 385,232.31 is: 531,003.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,051.71 : 784,379.27 = 385,232.31 : x
  2. Step 2: Convert to fraction form
    569,051.71/784,379.27 = 385,232.31/x
  3. Step 3: Cross multiply
    569,051.71x = 784,379.27 × 385,232.31
  4. Step 4: Simplify right side
    569,051.71x = 302,168,239,061.29
  5. Step 5: Solve for x
    x = 302,168,239,061.29/569,051.71
  6. Step 6: Final answer
    x = 531,003.13

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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.