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Finding the Fourth Proportional to 551,612.40, 828,196.20 and 341,660.40

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Solution

The fourth proportional to 551,612.40, 828,196.20 and 341,660.40 is: 512,972.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,612.40 : 828,196.20 = 341,660.40 : x
  2. Step 2: Convert to fraction form
    551,612.40/828,196.20 = 341,660.40/x
  3. Step 3: Cross multiply
    551,612.40x = 828,196.20 × 341,660.40
  4. Step 4: Simplify right side
    551,612.40x = 282,961,844,970.48
  5. Step 5: Solve for x
    x = 282,961,844,970.48/551,612.40
  6. Step 6: Final answer
    x = 512,972.23

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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.