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Finding the Fourth Proportional to 566,634.88, 781,962.24 and 308,513.60

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Solution

The fourth proportional to 566,634.88, 781,962.24 and 308,513.60 is: 425,752.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,634.88 : 781,962.24 = 308,513.60 : x
  2. Step 2: Convert to fraction form
    566,634.88/781,962.24 = 308,513.60/x
  3. Step 3: Cross multiply
    566,634.88x = 781,962.24 × 308,513.60
  4. Step 4: Simplify right side
    566,634.88x = 241,245,985,726.46
  5. Step 5: Solve for x
    x = 241,245,985,726.46/566,634.88
  6. Step 6: Final answer
    x = 425,752.09

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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.