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Finding the Fourth Proportional to 524,811.20, 787,411.20 and 169,836.80

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Solution

The fourth proportional to 524,811.20, 787,411.20 and 169,836.80 is: 254,818.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,811.20 : 787,411.20 = 169,836.80 : x
  2. Step 2: Convert to fraction form
    524,811.20/787,411.20 = 169,836.80/x
  3. Step 3: Cross multiply
    524,811.20x = 787,411.20 × 169,836.80
  4. Step 4: Simplify right side
    524,811.20x = 133,731,398,492.16
  5. Step 5: Solve for x
    x = 133,731,398,492.16/524,811.20
  6. Step 6: Final answer
    x = 254,818.11

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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.