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Finding the Fourth Proportional to 521,765.60, 782,545.74 and 166,683.92

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Solution

The fourth proportional to 521,765.60, 782,545.74 and 166,683.92 is: 249,993.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,765.60 : 782,545.74 = 166,683.92 : x
  2. Step 2: Convert to fraction form
    521,765.60/782,545.74 = 166,683.92/x
  3. Step 3: Cross multiply
    521,765.60x = 782,545.74 × 166,683.92
  4. Step 4: Simplify right side
    521,765.60x = 130,437,791,522.50
  5. Step 5: Solve for x
    x = 130,437,791,522.50/521,765.60
  6. Step 6: Final answer
    x = 249,993.08

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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.