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Finding the Fourth Proportional to 371,423.68, 512,576.94 and 210,275.44

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Solution

The fourth proportional to 371,423.68, 512,576.94 and 210,275.44 is: 290,187.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,423.68 : 512,576.94 = 210,275.44 : x
  2. Step 2: Convert to fraction form
    371,423.68/512,576.94 = 210,275.44/x
  3. Step 3: Cross multiply
    371,423.68x = 512,576.94 × 210,275.44
  4. Step 4: Simplify right side
    371,423.68x = 107,782,341,592.35
  5. Step 5: Solve for x
    x = 107,782,341,592.35/371,423.68
  6. Step 6: Final answer
    x = 290,187.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.