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Finding the Fourth Proportional to 556,626.09, 768,145.49 and 301,977.28

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Solution

The fourth proportional to 556,626.09, 768,145.49 and 301,977.28 is: 416,729.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,626.09 : 768,145.49 = 301,977.28 : x
  2. Step 2: Convert to fraction form
    556,626.09/768,145.49 = 301,977.28/x
  3. Step 3: Cross multiply
    556,626.09x = 768,145.49 × 301,977.28
  4. Step 4: Simplify right side
    556,626.09x = 231,962,487,995.80
  5. Step 5: Solve for x
    x = 231,962,487,995.80/556,626.09
  6. Step 6: Final answer
    x = 416,729.45

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1.5x scale

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.