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Finding the Fourth Proportional to 554,869.98, 765,638.47 and 336,965.33

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Solution

The fourth proportional to 554,869.98, 765,638.47 and 336,965.33 is: 464,962.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,869.98 : 765,638.47 = 336,965.33 : x
  2. Step 2: Convert to fraction form
    554,869.98/765,638.47 = 336,965.33/x
  3. Step 3: Cross multiply
    554,869.98x = 765,638.47 × 336,965.33
  4. Step 4: Simplify right side
    554,869.98x = 257,993,619,704.25
  5. Step 5: Solve for x
    x = 257,993,619,704.25/554,869.98
  6. Step 6: Final answer
    x = 464,962.30

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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.