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Finding the Fourth Proportional to 339,308.68, 468,267.08 and 188,406.76

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Solution

The fourth proportional to 339,308.68, 468,267.08 and 188,406.76 is: 260,013.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,308.68 : 468,267.08 = 188,406.76 : x
  2. Step 2: Convert to fraction form
    339,308.68/468,267.08 = 188,406.76/x
  3. Step 3: Cross multiply
    339,308.68x = 468,267.08 × 188,406.76
  4. Step 4: Simplify right side
    339,308.68x = 88,224,683,357.46
  5. Step 5: Solve for x
    x = 88,224,683,357.46/339,308.68
  6. Step 6: Final answer
    x = 260,013.05

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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.