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Finding the Fourth Proportional to 576,436.98, 789,714.96 and 554,880.90

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Solution

The fourth proportional to 576,436.98, 789,714.96 and 554,880.90 is: 760,183.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,436.98 : 789,714.96 = 554,880.90 : x
  2. Step 2: Convert to fraction form
    576,436.98/789,714.96 = 554,880.90/x
  3. Step 3: Cross multiply
    576,436.98x = 789,714.96 × 554,880.90
  4. Step 4: Simplify right side
    576,436.98x = 438,197,747,748.26
  5. Step 5: Solve for x
    x = 438,197,747,748.26/576,436.98
  6. Step 6: Final answer
    x = 760,183.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.