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Finding the Fourth Proportional to 289,541.70, 434,110.05 and 171,152.10

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Solution

The fourth proportional to 289,541.70, 434,110.05 and 171,152.10 is: 256,608.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,541.70 : 434,110.05 = 171,152.10 : x
  2. Step 2: Convert to fraction form
    289,541.70/434,110.05 = 171,152.10/x
  3. Step 3: Cross multiply
    289,541.70x = 434,110.05 × 171,152.10
  4. Step 4: Simplify right side
    289,541.70x = 74,298,846,688.61
  5. Step 5: Solve for x
    x = 74,298,846,688.61/289,541.70
  6. Step 6: Final answer
    x = 256,608.45

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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.