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Finding the Fourth Proportional to 376,115.54, 560,264.20 and 355,743.23

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Solution

The fourth proportional to 376,115.54, 560,264.20 and 355,743.23 is: 529,917.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,115.54 : 560,264.20 = 355,743.23 : x
  2. Step 2: Convert to fraction form
    376,115.54/560,264.20 = 355,743.23/x
  3. Step 3: Cross multiply
    376,115.54x = 560,264.20 × 355,743.23
  4. Step 4: Simplify right side
    376,115.54x = 199,310,196,672.67
  5. Step 5: Solve for x
    x = 199,310,196,672.67/376,115.54
  6. Step 6: Final answer
    x = 529,917.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.