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Finding the Fourth Proportional to 529,434.90, 794,075.55 and 155,418.90

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Solution

The fourth proportional to 529,434.90, 794,075.55 and 155,418.90 is: 233,105.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,434.90 : 794,075.55 = 155,418.90 : x
  2. Step 2: Convert to fraction form
    529,434.90/794,075.55 = 155,418.90/x
  3. Step 3: Cross multiply
    529,434.90x = 794,075.55 × 155,418.90
  4. Step 4: Simplify right side
    529,434.90x = 123,414,348,497.90
  5. Step 5: Solve for x
    x = 123,414,348,497.90/529,434.90
  6. Step 6: Final answer
    x = 233,105.80

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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.