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Finding the Fourth Proportional to 346,420.40, 519,630.60 and 327,066.80

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Solution

The fourth proportional to 346,420.40, 519,630.60 and 327,066.80 is: 490,600.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,420.40 : 519,630.60 = 327,066.80 : x
  2. Step 2: Convert to fraction form
    346,420.40/519,630.60 = 327,066.80/x
  3. Step 3: Cross multiply
    346,420.40x = 519,630.60 × 327,066.80
  4. Step 4: Simplify right side
    346,420.40x = 169,953,917,524.08
  5. Step 5: Solve for x
    x = 169,953,917,524.08/346,420.40
  6. Step 6: Final answer
    x = 490,600.20

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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.