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Finding the Fourth Proportional to 884,083.60, 1,326,125.40 and 323,520.40

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Solution

The fourth proportional to 884,083.60, 1,326,125.40 and 323,520.40 is: 485,280.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,083.60 : 1,326,125.40 = 323,520.40 : x
  2. Step 2: Convert to fraction form
    884,083.60/1,326,125.40 = 323,520.40/x
  3. Step 3: Cross multiply
    884,083.60x = 1,326,125.40 × 323,520.40
  4. Step 4: Simplify right side
    884,083.60x = 429,028,619,858.16
  5. Step 5: Solve for x
    x = 429,028,619,858.16/884,083.60
  6. Step 6: Final answer
    x = 485,280.60

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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.