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Finding the Fourth Proportional to 292,804.40, 439,228.20 and 105,791.60

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Solution

The fourth proportional to 292,804.40, 439,228.20 and 105,791.60 is: 158,695.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,804.40 : 439,228.20 = 105,791.60 : x
  2. Step 2: Convert to fraction form
    292,804.40/439,228.20 = 105,791.60/x
  3. Step 3: Cross multiply
    292,804.40x = 439,228.20 × 105,791.60
  4. Step 4: Simplify right side
    292,804.40x = 46,466,654,043.12
  5. Step 5: Solve for x
    x = 46,466,654,043.12/292,804.40
  6. Step 6: Final answer
    x = 158,695.20

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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.