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Finding the Fourth Proportional to 346,431.80, 519,647.70 and 341,766.20

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Solution

The fourth proportional to 346,431.80, 519,647.70 and 341,766.20 is: 512,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,431.80 : 519,647.70 = 341,766.20 : x
  2. Step 2: Convert to fraction form
    346,431.80/519,647.70 = 341,766.20/x
  3. Step 3: Cross multiply
    346,431.80x = 519,647.70 × 341,766.20
  4. Step 4: Simplify right side
    346,431.80x = 177,598,019,767.74
  5. Step 5: Solve for x
    x = 177,598,019,767.74/346,431.80
  6. Step 6: Final answer
    x = 512,649.30

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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.