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Finding the Fourth Proportional to 855,734.63, 1,180,913.78 and 473,786.01

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Solution

The fourth proportional to 855,734.63, 1,180,913.78 and 473,786.01 is: 653,824.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,734.63 : 1,180,913.78 = 473,786.01 : x
  2. Step 2: Convert to fraction form
    855,734.63/1,180,913.78 = 473,786.01/x
  3. Step 3: Cross multiply
    855,734.63x = 1,180,913.78 × 473,786.01
  4. Step 4: Simplify right side
    855,734.63x = 559,500,429,164.68
  5. Step 5: Solve for x
    x = 559,500,429,164.68/855,734.63
  6. Step 6: Final answer
    x = 653,824.69

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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.