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Finding the Fourth Proportional to 610,730.80, 915,666.96 and 269,012.08

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Solution

The fourth proportional to 610,730.80, 915,666.96 and 269,012.08 is: 403,329.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,730.80 : 915,666.96 = 269,012.08 : x
  2. Step 2: Convert to fraction form
    610,730.80/915,666.96 = 269,012.08/x
  3. Step 3: Cross multiply
    610,730.80x = 915,666.96 × 269,012.08
  4. Step 4: Simplify right side
    610,730.80x = 246,325,473,496.88
  5. Step 5: Solve for x
    x = 246,325,473,496.88/610,730.80
  6. Step 6: Final answer
    x = 403,329.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.