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Finding the Fourth Proportional to 635,256.25, 876,655.35 and 348,794.89

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Solution

The fourth proportional to 635,256.25, 876,655.35 and 348,794.89 is: 481,337.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,256.25 : 876,655.35 = 348,794.89 : x
  2. Step 2: Convert to fraction form
    635,256.25/876,655.35 = 348,794.89/x
  3. Step 3: Cross multiply
    635,256.25x = 876,655.35 × 348,794.89
  4. Step 4: Simplify right side
    635,256.25x = 305,772,904,179.52
  5. Step 5: Solve for x
    x = 305,772,904,179.52/635,256.25
  6. Step 6: Final answer
    x = 481,337.89

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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.