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Finding the Fourth Proportional to 552,657.80, 828,986.70 and 197,683.40

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Solution

The fourth proportional to 552,657.80, 828,986.70 and 197,683.40 is: 296,525.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,657.80 : 828,986.70 = 197,683.40 : x
  2. Step 2: Convert to fraction form
    552,657.80/828,986.70 = 197,683.40/x
  3. Step 3: Cross multiply
    552,657.80x = 828,986.70 × 197,683.40
  4. Step 4: Simplify right side
    552,657.80x = 163,876,909,410.78
  5. Step 5: Solve for x
    x = 163,876,909,410.78/552,657.80
  6. Step 6: Final answer
    x = 296,525.10

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Similar ratio
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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.