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Finding the Fourth Proportional to 346,516.72, 478,187.90 and 193,557.67

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Solution

The fourth proportional to 346,516.72, 478,187.90 and 193,557.67 is: 267,106.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,516.72 : 478,187.90 = 193,557.67 : x
  2. Step 2: Convert to fraction form
    346,516.72/478,187.90 = 193,557.67/x
  3. Step 3: Cross multiply
    346,516.72x = 478,187.90 × 193,557.67
  4. Step 4: Simplify right side
    346,516.72x = 92,556,934,778.40
  5. Step 5: Solve for x
    x = 92,556,934,778.40/346,516.72
  6. Step 6: Final answer
    x = 267,106.69

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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.