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Finding the Fourth Proportional to 346,459.20, 519,883.20 and 146,745.60

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Solution

The fourth proportional to 346,459.20, 519,883.20 and 146,745.60 is: 220,200.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,459.20 : 519,883.20 = 146,745.60 : x
  2. Step 2: Convert to fraction form
    346,459.20/519,883.20 = 146,745.60/x
  3. Step 3: Cross multiply
    346,459.20x = 519,883.20 × 146,745.60
  4. Step 4: Simplify right side
    346,459.20x = 76,290,572,113.92
  5. Step 5: Solve for x
    x = 76,290,572,113.92/346,459.20
  6. Step 6: Final answer
    x = 220,200.74

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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.