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Finding the Fourth Proportional to 587,142.81, 880,709.56 and 348,907.77

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Solution

The fourth proportional to 587,142.81, 880,709.56 and 348,907.77 is: 523,358.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,142.81 : 880,709.56 = 348,907.77 : x
  2. Step 2: Convert to fraction form
    587,142.81/880,709.56 = 348,907.77/x
  3. Step 3: Cross multiply
    587,142.81x = 880,709.56 × 348,907.77
  4. Step 4: Simplify right side
    587,142.81x = 307,286,407,725.01
  5. Step 5: Solve for x
    x = 307,286,407,725.01/587,142.81
  6. Step 6: Final answer
    x = 523,358.89

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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.