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Finding the Fourth Proportional to 996,958.60, 1,495,437.90 and 365,790.40

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Solution

The fourth proportional to 996,958.60, 1,495,437.90 and 365,790.40 is: 548,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,958.60 : 1,495,437.90 = 365,790.40 : x
  2. Step 2: Convert to fraction form
    996,958.60/1,495,437.90 = 365,790.40/x
  3. Step 3: Cross multiply
    996,958.60x = 1,495,437.90 × 365,790.40
  4. Step 4: Simplify right side
    996,958.60x = 547,016,827,616.16
  5. Step 5: Solve for x
    x = 547,016,827,616.16/996,958.60
  6. Step 6: Final answer
    x = 548,685.60

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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.