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Finding the Fourth Proportional to 295,545.60, 443,318.40 and 257,054.40

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Solution

The fourth proportional to 295,545.60, 443,318.40 and 257,054.40 is: 385,581.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,545.60 : 443,318.40 = 257,054.40 : x
  2. Step 2: Convert to fraction form
    295,545.60/443,318.40 = 257,054.40/x
  3. Step 3: Cross multiply
    295,545.60x = 443,318.40 × 257,054.40
  4. Step 4: Simplify right side
    295,545.60x = 113,956,945,320.96
  5. Step 5: Solve for x
    x = 113,956,945,320.96/295,545.60
  6. Step 6: Final answer
    x = 385,581.60

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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.