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Finding the Fourth Proportional to 346,560.30, 519,840.45 and 189,096.30

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Solution

The fourth proportional to 346,560.30, 519,840.45 and 189,096.30 is: 283,644.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,560.30 : 519,840.45 = 189,096.30 : x
  2. Step 2: Convert to fraction form
    346,560.30/519,840.45 = 189,096.30/x
  3. Step 3: Cross multiply
    346,560.30x = 519,840.45 × 189,096.30
  4. Step 4: Simplify right side
    346,560.30x = 98,299,905,685.34
  5. Step 5: Solve for x
    x = 98,299,905,685.34/346,560.30
  6. Step 6: Final answer
    x = 283,644.45

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Double scale
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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.