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Finding the Fourth Proportional to 292,485.76, 403,639.68 and 179,422.72

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Solution

The fourth proportional to 292,485.76, 403,639.68 and 179,422.72 is: 247,609.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,485.76 : 403,639.68 = 179,422.72 : x
  2. Step 2: Convert to fraction form
    292,485.76/403,639.68 = 179,422.72/x
  3. Step 3: Cross multiply
    292,485.76x = 403,639.68 × 179,422.72
  4. Step 4: Simplify right side
    292,485.76x = 72,422,129,285.53
  5. Step 5: Solve for x
    x = 72,422,129,285.53/292,485.76
  6. Step 6: Final answer
    x = 247,609.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.