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Finding the Fourth Proportional to 961,313, 1,326,590.07 and 531,596.66

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Solution

The fourth proportional to 961,313, 1,326,590.07 and 531,596.66 is: 733,591.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,313 : 1,326,590.07 = 531,596.66 : x
  2. Step 2: Convert to fraction form
    961,313/1,326,590.07 = 531,596.66/x
  3. Step 3: Cross multiply
    961,313x = 1,326,590.07 × 531,596.66
  4. Step 4: Simplify right side
    961,313x = 705,210,850,401.17
  5. Step 5: Solve for x
    x = 705,210,850,401.17/961,313
  6. Step 6: Final answer
    x = 733,591.30

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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.