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Finding the Fourth Proportional to 496,699.68, 685,445.04 and 270,344.64

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Solution

The fourth proportional to 496,699.68, 685,445.04 and 270,344.64 is: 373,075.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,699.68 : 685,445.04 = 270,344.64 : x
  2. Step 2: Convert to fraction form
    496,699.68/685,445.04 = 270,344.64/x
  3. Step 3: Cross multiply
    496,699.68x = 685,445.04 × 270,344.64
  4. Step 4: Simplify right side
    496,699.68x = 185,306,392,578.59
  5. Step 5: Solve for x
    x = 185,306,392,578.59/496,699.68
  6. Step 6: Final answer
    x = 373,075.32

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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.