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Finding the Fourth Proportional to 346,099.70, 477,719.73 and 202,890.74

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Solution

The fourth proportional to 346,099.70, 477,719.73 and 202,890.74 is: 280,049.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,099.70 : 477,719.73 = 202,890.74 : x
  2. Step 2: Convert to fraction form
    346,099.70/477,719.73 = 202,890.74/x
  3. Step 3: Cross multiply
    346,099.70x = 477,719.73 × 202,890.74
  4. Step 4: Simplify right side
    346,099.70x = 96,924,909,532.30
  5. Step 5: Solve for x
    x = 96,924,909,532.30/346,099.70
  6. Step 6: Final answer
    x = 280,049.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.