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Finding the Fourth Proportional to 290,813.04, 401,158.08 and 169,928.64

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Solution

The fourth proportional to 290,813.04, 401,158.08 and 169,928.64 is: 234,405.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,813.04 : 401,158.08 = 169,928.64 : x
  2. Step 2: Convert to fraction form
    290,813.04/401,158.08 = 169,928.64/x
  3. Step 3: Cross multiply
    290,813.04x = 401,158.08 × 169,928.64
  4. Step 4: Simplify right side
    290,813.04x = 68,168,246,959.41
  5. Step 5: Solve for x
    x = 68,168,246,959.41/290,813.04
  6. Step 6: Final answer
    x = 234,405.74

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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.