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Finding the Fourth Proportional to 364,040.40, 545,914.80 and 127,261.20

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Solution

The fourth proportional to 364,040.40, 545,914.80 and 127,261.20 is: 190,840.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,040.40 : 545,914.80 = 127,261.20 : x
  2. Step 2: Convert to fraction form
    364,040.40/545,914.80 = 127,261.20/x
  3. Step 3: Cross multiply
    364,040.40x = 545,914.80 × 127,261.20
  4. Step 4: Simplify right side
    364,040.40x = 69,473,772,545.76
  5. Step 5: Solve for x
    x = 69,473,772,545.76/364,040.40
  6. Step 6: Final answer
    x = 190,840.83

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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.