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Finding the Fourth Proportional to 328,683.60, 492,737.40 and 223,160.40

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Solution

The fourth proportional to 328,683.60, 492,737.40 and 223,160.40 is: 334,545.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,683.60 : 492,737.40 = 223,160.40 : x
  2. Step 2: Convert to fraction form
    328,683.60/492,737.40 = 223,160.40/x
  3. Step 3: Cross multiply
    328,683.60x = 492,737.40 × 223,160.40
  4. Step 4: Simplify right side
    328,683.60x = 109,959,475,278.96
  5. Step 5: Solve for x
    x = 109,959,475,278.96/328,683.60
  6. Step 6: Final answer
    x = 334,545.06

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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.