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Finding the Fourth Proportional to 519,714.88, 778,944.48 and 253,075.84

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Solution

The fourth proportional to 519,714.88, 778,944.48 and 253,075.84 is: 379,308.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,714.88 : 778,944.48 = 253,075.84 : x
  2. Step 2: Convert to fraction form
    519,714.88/778,944.48 = 253,075.84/x
  3. Step 3: Cross multiply
    519,714.88x = 778,944.48 × 253,075.84
  4. Step 4: Simplify right side
    519,714.88x = 197,132,028,589.36
  5. Step 5: Solve for x
    x = 197,132,028,589.36/519,714.88
  6. Step 6: Final answer
    x = 379,308.03

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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.