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Finding the Fourth Proportional to 554,868.76, 765,636.80 and 336,964.12

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Solution

The fourth proportional to 554,868.76, 765,636.80 and 336,964.12 is: 464,960.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,868.76 : 765,636.80 = 336,964.12 : x
  2. Step 2: Convert to fraction form
    554,868.76/765,636.80 = 336,964.12/x
  3. Step 3: Cross multiply
    554,868.76x = 765,636.80 × 336,964.12
  4. Step 4: Simplify right side
    554,868.76x = 257,992,128,866.80
  5. Step 5: Solve for x
    x = 257,992,128,866.80/554,868.76
  6. Step 6: Final answer
    x = 464,960.63

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Double scale
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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.