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Finding the Fourth Proportional to 411,952.40, 617,928.60 and 235,005.20

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Solution

The fourth proportional to 411,952.40, 617,928.60 and 235,005.20 is: 352,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,952.40 : 617,928.60 = 235,005.20 : x
  2. Step 2: Convert to fraction form
    411,952.40/617,928.60 = 235,005.20/x
  3. Step 3: Cross multiply
    411,952.40x = 617,928.60 × 235,005.20
  4. Step 4: Simplify right side
    411,952.40x = 145,216,434,228.72
  5. Step 5: Solve for x
    x = 145,216,434,228.72/411,952.40
  6. Step 6: Final answer
    x = 352,507.80

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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.