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Finding the Fourth Proportional to 447,685.50, 618,330.87 and 296,520.06

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Solution

The fourth proportional to 447,685.50, 618,330.87 and 296,520.06 is: 409,545.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,685.50 : 618,330.87 = 296,520.06 : x
  2. Step 2: Convert to fraction form
    447,685.50/618,330.87 = 296,520.06/x
  3. Step 3: Cross multiply
    447,685.50x = 618,330.87 × 296,520.06
  4. Step 4: Simplify right side
    447,685.50x = 183,347,506,672.25
  5. Step 5: Solve for x
    x = 183,347,506,672.25/447,685.50
  6. Step 6: Final answer
    x = 409,545.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.