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Finding the Fourth Proportional to 476,769.33, 715,455.32 and 266,545.17

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Solution

The fourth proportional to 476,769.33, 715,455.32 and 266,545.17 is: 399,986.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,769.33 : 715,455.32 = 266,545.17 : x
  2. Step 2: Convert to fraction form
    476,769.33/715,455.32 = 266,545.17/x
  3. Step 3: Cross multiply
    476,769.33x = 715,455.32 × 266,545.17
  4. Step 4: Simplify right side
    476,769.33x = 190,701,158,564.08
  5. Step 5: Solve for x
    x = 190,701,158,564.08/476,769.33
  6. Step 6: Final answer
    x = 399,986.21

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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.