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Finding the Fourth Proportional to 552,635.80, 828,953.70 and 197,661.40

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Solution

The fourth proportional to 552,635.80, 828,953.70 and 197,661.40 is: 296,492.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,635.80 : 828,953.70 = 197,661.40 : x
  2. Step 2: Convert to fraction form
    552,635.80/828,953.70 = 197,661.40/x
  3. Step 3: Cross multiply
    552,635.80x = 828,953.70 × 197,661.40
  4. Step 4: Simplify right side
    552,635.80x = 163,852,148,877.18
  5. Step 5: Solve for x
    x = 163,852,148,877.18/552,635.80
  6. Step 6: Final answer
    x = 296,492.10

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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.