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Finding the Fourth Proportional to 292,272.63, 438,421.70 and 92,607.73

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Solution

The fourth proportional to 292,272.63, 438,421.70 and 92,607.73 is: 138,915.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,272.63 : 438,421.70 = 92,607.73 : x
  2. Step 2: Convert to fraction form
    292,272.63/438,421.70 = 92,607.73/x
  3. Step 3: Cross multiply
    292,272.63x = 438,421.70 × 92,607.73
  4. Step 4: Simplify right side
    292,272.63x = 40,601,238,419.74
  5. Step 5: Solve for x
    x = 40,601,238,419.74/292,272.63
  6. Step 6: Final answer
    x = 138,915.64

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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.