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Finding the Fourth Proportional to 346,266.30, 519,399.45 and 146,520.30

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Solution

The fourth proportional to 346,266.30, 519,399.45 and 146,520.30 is: 219,780.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,266.30 : 519,399.45 = 146,520.30 : x
  2. Step 2: Convert to fraction form
    346,266.30/519,399.45 = 146,520.30/x
  3. Step 3: Cross multiply
    346,266.30x = 519,399.45 × 146,520.30
  4. Step 4: Simplify right side
    346,266.30x = 76,102,563,233.84
  5. Step 5: Solve for x
    x = 76,102,563,233.84/346,266.30
  6. Step 6: Final answer
    x = 219,780.45

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Similar ratio
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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.