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Finding the Fourth Proportional to 406,985.60, 610,046.40 and 196,486.40

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Solution

The fourth proportional to 406,985.60, 610,046.40 and 196,486.40 is: 294,521.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,985.60 : 610,046.40 = 196,486.40 : x
  2. Step 2: Convert to fraction form
    406,985.60/610,046.40 = 196,486.40/x
  3. Step 3: Cross multiply
    406,985.60x = 610,046.40 × 196,486.40
  4. Step 4: Simplify right side
    406,985.60x = 119,865,820,968.96
  5. Step 5: Solve for x
    x = 119,865,820,968.96/406,985.60
  6. Step 6: Final answer
    x = 294,521.04

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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.