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Finding the Fourth Proportional to 363,987.09, 546,058.40 and 127,337.49

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Solution

The fourth proportional to 363,987.09, 546,058.40 and 127,337.49 is: 191,033.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,987.09 : 546,058.40 = 127,337.49 : x
  2. Step 2: Convert to fraction form
    363,987.09/546,058.40 = 127,337.49/x
  3. Step 3: Cross multiply
    363,987.09x = 546,058.40 × 127,337.49
  4. Step 4: Simplify right side
    363,987.09x = 69,533,705,412.73
  5. Step 5: Solve for x
    x = 69,533,705,412.73/363,987.09
  6. Step 6: Final answer
    x = 191,033.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.