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Finding the Fourth Proportional to 554,555.43, 765,283.14 and 299,906.01

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Solution

The fourth proportional to 554,555.43, 765,283.14 and 299,906.01 is: 413,868.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,555.43 : 765,283.14 = 299,906.01 : x
  2. Step 2: Convert to fraction form
    554,555.43/765,283.14 = 299,906.01/x
  3. Step 3: Cross multiply
    554,555.43x = 765,283.14 × 299,906.01
  4. Step 4: Simplify right side
    554,555.43x = 229,513,013,037.67
  5. Step 5: Solve for x
    x = 229,513,013,037.67/554,555.43
  6. Step 6: Final answer
    x = 413,868.48

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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.