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Finding the Fourth Proportional to 474,570.80, 655,213.35 and 423,495.69

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Solution

The fourth proportional to 474,570.80, 655,213.35 and 423,495.69 is: 584,696.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,570.80 : 655,213.35 = 423,495.69 : x
  2. Step 2: Convert to fraction form
    474,570.80/655,213.35 = 423,495.69/x
  3. Step 3: Cross multiply
    474,570.80x = 655,213.35 × 423,495.69
  4. Step 4: Simplify right side
    474,570.80x = 277,480,032,572.10
  5. Step 5: Solve for x
    x = 277,480,032,572.10/474,570.80
  6. Step 6: Final answer
    x = 584,696.81

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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.