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Finding the Fourth Proportional to 640,174.68, 883,533.59 and 382,062.59

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Solution

The fourth proportional to 640,174.68, 883,533.59 and 382,062.59 is: 527,301.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,174.68 : 883,533.59 = 382,062.59 : x
  2. Step 2: Convert to fraction form
    640,174.68/883,533.59 = 382,062.59/x
  3. Step 3: Cross multiply
    640,174.68x = 883,533.59 × 382,062.59
  4. Step 4: Simplify right side
    640,174.68x = 337,565,125,419.42
  5. Step 5: Solve for x
    x = 337,565,125,419.42/640,174.68
  6. Step 6: Final answer
    x = 527,301.59

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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.