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Finding the Fourth Proportional to 346,667.05, 478,402.93 and 193,711.69

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Solution

The fourth proportional to 346,667.05, 478,402.93 and 193,711.69 is: 267,323.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,667.05 : 478,402.93 = 193,711.69 : x
  2. Step 2: Convert to fraction form
    346,667.05/478,402.93 = 193,711.69/x
  3. Step 3: Cross multiply
    346,667.05x = 478,402.93 × 193,711.69
  4. Step 4: Simplify right side
    346,667.05x = 92,672,240,911.40
  5. Step 5: Solve for x
    x = 92,672,240,911.40/346,667.05
  6. Step 6: Final answer
    x = 267,323.48

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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.