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Finding the Fourth Proportional to 978,199.80, 1,467,299.70 and 604,433.40

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Solution

The fourth proportional to 978,199.80, 1,467,299.70 and 604,433.40 is: 906,650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,199.80 : 1,467,299.70 = 604,433.40 : x
  2. Step 2: Convert to fraction form
    978,199.80/1,467,299.70 = 604,433.40/x
  3. Step 3: Cross multiply
    978,199.80x = 1,467,299.70 × 604,433.40
  4. Step 4: Simplify right side
    978,199.80x = 886,884,946,489.98
  5. Step 5: Solve for x
    x = 886,884,946,489.98/978,199.80
  6. Step 6: Final answer
    x = 906,650.10

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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.