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Finding the Fourth Proportional to 965,166.75, 1,447,713.78 and 291,230.15

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Solution

The fourth proportional to 965,166.75, 1,447,713.78 and 291,230.15 is: 436,834.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,166.75 : 1,447,713.78 = 291,230.15 : x
  2. Step 2: Convert to fraction form
    965,166.75/1,447,713.78 = 291,230.15/x
  3. Step 3: Cross multiply
    965,166.75x = 1,447,713.78 × 291,230.15
  4. Step 4: Simplify right side
    965,166.75x = 421,617,901,306.47
  5. Step 5: Solve for x
    x = 421,617,901,306.47/965,166.75
  6. Step 6: Final answer
    x = 436,834.26

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1.5x scale

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.