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Finding the Fourth Proportional to 576,075.63, 794,983.88 and 321,426.82

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Solution

The fourth proportional to 576,075.63, 794,983.88 and 321,426.82 is: 443,568.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,075.63 : 794,983.88 = 321,426.82 : x
  2. Step 2: Convert to fraction form
    576,075.63/794,983.88 = 321,426.82/x
  3. Step 3: Cross multiply
    576,075.63x = 794,983.88 × 321,426.82
  4. Step 4: Simplify right side
    576,075.63x = 255,529,136,905.07
  5. Step 5: Solve for x
    x = 255,529,136,905.07/576,075.63
  6. Step 6: Final answer
    x = 443,568.73

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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.