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Finding the Fourth Proportional to 376,543.01, 519,846.66 and 285,740.14

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Solution

The fourth proportional to 376,543.01, 519,846.66 and 285,740.14 is: 394,486.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,543.01 : 519,846.66 = 285,740.14 : x
  2. Step 2: Convert to fraction form
    376,543.01/519,846.66 = 285,740.14/x
  3. Step 3: Cross multiply
    376,543.01x = 519,846.66 × 285,740.14
  4. Step 4: Simplify right side
    376,543.01x = 148,541,054,807.70
  5. Step 5: Solve for x
    x = 148,541,054,807.70/376,543.01
  6. Step 6: Final answer
    x = 394,486.29

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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.