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Finding the Fourth Proportional to 403,215.60, 604,823.40 and 166,436.40

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Solution

The fourth proportional to 403,215.60, 604,823.40 and 166,436.40 is: 249,654.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,215.60 : 604,823.40 = 166,436.40 : x
  2. Step 2: Convert to fraction form
    403,215.60/604,823.40 = 166,436.40/x
  3. Step 3: Cross multiply
    403,215.60x = 604,823.40 × 166,436.40
  4. Step 4: Simplify right side
    403,215.60x = 100,664,629,331.76
  5. Step 5: Solve for x
    x = 100,664,629,331.76/403,215.60
  6. Step 6: Final answer
    x = 249,654.60

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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.