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Finding the Fourth Proportional to 292,493.60, 438,610.80 and 134,770.40

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Solution

The fourth proportional to 292,493.60, 438,610.80 and 134,770.40 is: 202,095.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,493.60 : 438,610.80 = 134,770.40 : x
  2. Step 2: Convert to fraction form
    292,493.60/438,610.80 = 134,770.40/x
  3. Step 3: Cross multiply
    292,493.60x = 438,610.80 × 134,770.40
  4. Step 4: Simplify right side
    292,493.60x = 59,111,752,960.32
  5. Step 5: Solve for x
    x = 59,111,752,960.32/292,493.60
  6. Step 6: Final answer
    x = 202,095.89

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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.