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Finding the Fourth Proportional to 561,946.40, 842,919.60 and 552,615.20

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Solution

The fourth proportional to 561,946.40, 842,919.60 and 552,615.20 is: 828,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,946.40 : 842,919.60 = 552,615.20 : x
  2. Step 2: Convert to fraction form
    561,946.40/842,919.60 = 552,615.20/x
  3. Step 3: Cross multiply
    561,946.40x = 842,919.60 × 552,615.20
  4. Step 4: Simplify right side
    561,946.40x = 465,810,183,337.92
  5. Step 5: Solve for x
    x = 465,810,183,337.92/561,946.40
  6. Step 6: Final answer
    x = 828,922.80

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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.