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Finding the Fourth Proportional to 292,292.40, 438,438.60 and 167,530.80

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Solution

The fourth proportional to 292,292.40, 438,438.60 and 167,530.80 is: 251,296.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,292.40 : 438,438.60 = 167,530.80 : x
  2. Step 2: Convert to fraction form
    292,292.40/438,438.60 = 167,530.80/x
  3. Step 3: Cross multiply
    292,292.40x = 438,438.60 × 167,530.80
  4. Step 4: Simplify right side
    292,292.40x = 73,451,969,408.88
  5. Step 5: Solve for x
    x = 73,451,969,408.88/292,292.40
  6. Step 6: Final answer
    x = 251,296.20

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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.